7 (English Wikipedia)

"Μαθηματικά Α' Δημοτικού" [Mathematics for the First Grade] (PDF) (in Greek). Ministry of Education, Research, and Religions. p. 33. Retrieved May 7, 2018.

gizmodo.com (Global: 763^rd place; English: 486^th place)

Gonzalez, Robbie (4 December 2014). "Why Do People Love The Number Seven?". Gizmodo. Retrieved 20 February 2022.

gruze.org (Global: low place; English: low place)

Jardine, Kevin. "Shield - a 3.7.42 tiling". Imperfect Congruence. Retrieved 2023-01-09. 3.7.42 as a unit facet in an irregular tiling.

iltalehti.fi (Global: 834^th place; English: 2,868^th place)

Elli Harju (August 6, 2015). ""Nenosen seiska" teki paluun: Tiesitkö, mistä poikkiviiva on peräisin?". Iltalehti (in Finnish).

jstor.org (Global: 23^rd place; English: 15^th place)

Grünbaum, Branko; Shephard, G. C. (1987). "Section 1.4 Symmetry Groups of Tilings". Tilings and Patterns. New York: W. H. Freeman and Company. pp. 40–45. doi:10.2307/2323457. ISBN 0-7167-1193-1. JSTOR 2323457. OCLC 13092426. S2CID 119730123.
Grünbaum, Branko; Shepard, Geoffrey (November 1977). "Tilings by Regular Polygons" (PDF). Mathematics Magazine. 50 (5). Taylor & Francis, Ltd.: 231. doi:10.2307/2689529. JSTOR 2689529. S2CID 123776612. Zbl 0385.51006. Archived from the original (PDF) on 2016-03-03. Retrieved 2023-01-09.
Grünbaum, Branko; Shepard, Geoffrey (November 1977). "Tilings by Regular Polygons" (PDF). Mathematics Magazine. 50 (5). Taylor & Francis, Ltd.: 236. doi:10.2307/2689529. JSTOR 2689529. S2CID 123776612. Zbl 0385.51006. Archived from the original (PDF) on 2016-03-03. Retrieved 2023-01-09.
Massey, William S. (December 1983). "Cross products of vectors in higher dimensional Euclidean spaces" (PDF). The American Mathematical Monthly. 90 (10). Taylor & Francis, Ltd: 697–701. doi:10.2307/2323537. JSTOR 2323537. S2CID 43318100. Zbl 0532.55011. Archived from the original (PDF) on 2021-02-26. Retrieved 2023-02-23.

maa.org (Global: 4,358^th place; English: 2,907^th place)

Grünbaum, Branko; Shepard, Geoffrey (November 1977). "Tilings by Regular Polygons" (PDF). Mathematics Magazine. 50 (5). Taylor & Francis, Ltd.: 231. doi:10.2307/2689529. JSTOR 2689529. S2CID 123776612. Zbl 0385.51006. Archived from the original (PDF) on 2016-03-03. Retrieved 2023-01-09.
Grünbaum, Branko; Shepard, Geoffrey (November 1977). "Tilings by Regular Polygons" (PDF). Mathematics Magazine. 50 (5). Taylor & Francis, Ltd.: 236. doi:10.2307/2689529. JSTOR 2689529. S2CID 123776612. Zbl 0385.51006. Archived from the original (PDF) on 2016-03-03. Retrieved 2023-01-09.

mit.edu (Global: 476^th place; English: 340^th place)

math.mit.edu

Poonen, Bjorn; Rubinstein, Michael (1998). "The Number of Intersection Points Made by the Diagonals of a Regular Polygon" (PDF). SIAM Journal on Discrete Mathematics. 11 (1). Philadelphia: Society for Industrial and Applied Mathematics: 135–156. arXiv:math/9508209. doi:10.1137/S0895480195281246. MR 1612877. S2CID 8673508. Zbl 0913.51005.

oeis.org (Global: 1,188^th place; English: 866^th place)

"Sloane's A088165 : NSW primes". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-01.
"Sloane's A050918 : Woodall primes". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-01.
"Sloane's A088054 : Factorial primes". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-01.
"Sloane's A031157 : Numbers that are both lucky and prime". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-01.
"Sloane's A035497 : Happy primes". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-01.
Sloane, N. J. A. (ed.). "Sequence A045575 (Leyland numbers of the second kind)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
Sloane, N. J. A. (ed.). "Sequence A123206 (Leyland prime numbers of the second kind)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
"Sloane's A003173 : Heegner numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-01.
Sloane, N. J. A. (ed.). "Sequence A116582 (Numbers from Bhargava's 33 theorem.)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2024-02-03.
Sloane, N. J. A. (ed.). "Sequence A004029 (Number of n-dimensional space groups.)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2023-01-30.
Sloane, N. J. A. (ed.). "Sequence A068600 (Number of n-uniform tilings having n different arrangements of polygons about their vertices.)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2023-01-09.
Sloane, N. J. A. (ed.). "Sequence A001676 (Number of h-cobordism classes of smooth homotopy n-spheres.)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2023-02-23.
Sloane, N. J. A. (ed.). "Sequence A060283 (Periodic part of decimal expansion of reciprocal of n-th prime (leading 0's moved to end).)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2024-04-02.

pour-enfants.fr (Global: low place; English: low place)

"Example of teaching materials for pre-schoolers"(French)

researchgate.net (Global: 96^th place; English: 89^th place)

Kubovy, Michael; Psotka, Joseph (May 1976). "The predominance of seven and the apparent spontaneity of numerical choices". Journal of Experimental Psychology: Human Perception and Performance. 2 (2): 291–294. doi:10.1037/0096-1523.2.2.291. Retrieved 20 February 2022.

scientificamerican.com (Global: 1,110^th place; English: 817^th place)

Bellos, Alex. "The World's Most Popular Numbers [Excerpt]". Scientific American. Retrieved 20 February 2022.

semanticscholar.org (Global: 15^th place; English: 8^th place)

api.semanticscholar.org

Grünbaum, Branko; Shephard, G. C. (1987). "Section 1.4 Symmetry Groups of Tilings". Tilings and Patterns. New York: W. H. Freeman and Company. pp. 40–45. doi:10.2307/2323457. ISBN 0-7167-1193-1. JSTOR 2323457. OCLC 13092426. S2CID 119730123.
Grünbaum, Branko; Shepard, Geoffrey (November 1977). "Tilings by Regular Polygons" (PDF). Mathematics Magazine. 50 (5). Taylor & Francis, Ltd.: 231. doi:10.2307/2689529. JSTOR 2689529. S2CID 123776612. Zbl 0385.51006. Archived from the original (PDF) on 2016-03-03. Retrieved 2023-01-09.
Poonen, Bjorn; Rubinstein, Michael (1998). "The Number of Intersection Points Made by the Diagonals of a Regular Polygon" (PDF). SIAM Journal on Discrete Mathematics. 11 (1). Philadelphia: Society for Industrial and Applied Mathematics: 135–156. arXiv:math/9508209. doi:10.1137/S0895480195281246. MR 1612877. S2CID 8673508. Zbl 0913.51005.
Grünbaum, Branko; Shepard, Geoffrey (November 1977). "Tilings by Regular Polygons" (PDF). Mathematics Magazine. 50 (5). Taylor & Francis, Ltd.: 236. doi:10.2307/2689529. JSTOR 2689529. S2CID 123776612. Zbl 0385.51006. Archived from the original (PDF) on 2016-03-03. Retrieved 2023-01-09.
Massey, William S. (December 1983). "Cross products of vectors in higher dimensional Euclidean spaces" (PDF). The American Mathematical Monthly. 90 (10). Taylor & Francis, Ltd: 697–701. doi:10.2307/2323537. JSTOR 2323537. S2CID 43318100. Zbl 0532.55011. Archived from the original (PDF) on 2021-02-26. Retrieved 2023-02-23.
Baez, John C. (2002). "The Octonions". Bulletin of the American Mathematical Society. 39 (2). American Mathematical Society: 152–153. doi:10.1090/S0273-0979-01-00934-X. MR 1886087. S2CID 586512.
Behrens, M.; Hill, M.; Hopkins, M. J.; Mahowald, M. (2020). "Detecting exotic spheres in low dimensions using coker J". Journal of the London Mathematical Society. 101 (3). London Mathematical Society: 1173. arXiv:1708.06854. doi:10.1112/jlms.12301. MR 4111938. S2CID 119170255. Zbl 1460.55017.
Tumarkin, Pavel; Felikson, Anna (2008). "On d-dimensional compact hyperbolic Coxeter polytopes with d + 4 facets" (PDF). Transactions of the Moscow Mathematical Society. 69. Providence, R.I.: American Mathematical Society (Translation): 105–151. doi:10.1090/S0077-1554-08-00172-6. MR 2549446. S2CID 37141102. Zbl 1208.52012.
Wells, D. (1987). The Penguin Dictionary of Curious and Interesting Numbers. London: Penguin Books. pp. 171–174. ISBN 0-14-008029-5. OCLC 39262447. S2CID 118329153.

pdfs.semanticscholar.org

Massey, William S. (December 1983). "Cross products of vectors in higher dimensional Euclidean spaces" (PDF). The American Mathematical Monthly. 90 (10). Taylor & Francis, Ltd: 697–701. doi:10.2307/2323537. JSTOR 2323537. S2CID 43318100. Zbl 0532.55011. Archived from the original (PDF) on 2021-02-26. Retrieved 2023-02-23.

springer.com (Global: 182^nd place; English: 172^nd place)

link.springer.com

Cohen, Henri (2007). "Consequences of the Hasse–Minkowski Theorem". Number Theory Volume I: Tools and Diophantine Equations. Graduate Texts in Mathematics. Vol. 239 (1st ed.). Springer. pp. 312–314. doi:10.1007/978-0-387-49923-9. ISBN 978-0-387-49922-2. OCLC 493636622. Zbl 1119.11001.
Pisanski, Tomaž; Servatius, Brigitte (2013). "Section 1.1: Hexagrammum Mysticum". Configurations from a Graphical Viewpoint. Birkhäuser Advanced Texts (1 ed.). Boston, MA: Birkhäuser. pp. 5–6. doi:10.1007/978-0-8176-8364-1. ISBN 978-0-8176-8363-4. OCLC 811773514. Zbl 1277.05001.

tekniikkatalous.fi (Global: low place; English: low place)

Eeva Törmänen (September 8, 2011). "Aamulehti: Opetushallitus harkitsee numero 7 viivan palauttamista". Tekniikka & Talous (in Finnish). Archived from the original on September 17, 2011. Retrieved September 9, 2011.

ucr.edu (Global: 1,400^th place; English: 754^th place)

math.ucr.edu

Baez, John C. (2002). "The Octonions". Bulletin of the American Mathematical Society. 39 (2). American Mathematical Society: 152–153. doi:10.1090/S0273-0979-01-00934-X. MR 1886087. S2CID 586512.

web.archive.org (Global: 1^st place; English: 1^st place)

Eeva Törmänen (September 8, 2011). "Aamulehti: Opetushallitus harkitsee numero 7 viivan palauttamista". Tekniikka & Talous (in Finnish). Archived from the original on September 17, 2011. Retrieved September 9, 2011.
"Education writing numerals in grade 1." Archived 2008-10-02 at the Wayback Machine(Russian)
Grünbaum, Branko; Shepard, Geoffrey (November 1977). "Tilings by Regular Polygons" (PDF). Mathematics Magazine. 50 (5). Taylor & Francis, Ltd.: 231. doi:10.2307/2689529. JSTOR 2689529. S2CID 123776612. Zbl 0385.51006. Archived from the original (PDF) on 2016-03-03. Retrieved 2023-01-09.
Grünbaum, Branko; Shepard, Geoffrey (November 1977). "Tilings by Regular Polygons" (PDF). Mathematics Magazine. 50 (5). Taylor & Francis, Ltd.: 236. doi:10.2307/2689529. JSTOR 2689529. S2CID 123776612. Zbl 0385.51006. Archived from the original (PDF) on 2016-03-03. Retrieved 2023-01-09.
Massey, William S. (December 1983). "Cross products of vectors in higher dimensional Euclidean spaces" (PDF). The American Mathematical Monthly. 90 (10). Taylor & Francis, Ltd: 697–701. doi:10.2307/2323537. JSTOR 2323537. S2CID 43318100. Zbl 0532.55011. Archived from the original (PDF) on 2021-02-26. Retrieved 2023-02-23.
"Poincaré Conjecture | Clay Mathematics Institute". 2013-12-15. Archived from the original on 2013-12-15. Retrieved 2020-08-25.

wiley.com (Global: 150^th place; English: 174^th place)

onlinelibrary.wiley.com

Behrens, M.; Hill, M.; Hopkins, M. J.; Mahowald, M. (2020). "Detecting exotic spheres in low dimensions using coker J". Journal of the London Mathematical Society. 101 (3). London Mathematical Society: 1173. arXiv:1708.06854. doi:10.1112/jlms.12301. MR 4111938. S2CID 119170255. Zbl 1460.55017.

wolfram.com (Global: 1,091^st place; English: 1,169^th place)

mathworld.wolfram.com

Weisstein, Eric W. "Double Mersenne Number". mathworld.wolfram.com. Retrieved 2020-08-06.
Weisstein, Eric W. "Heptagon". mathworld.wolfram.com. Retrieved 2020-08-25.
Weisstein, Eric W. "7". mathworld.wolfram.com. Retrieved 2020-08-07.
Weisstein, Eric W. "Dice". mathworld.wolfram.com. Retrieved 2020-08-25.

worldcat.org (Global: 4^th place; English: 4^th place)

search.worldcat.org

Cohen, Henri (2007). "Consequences of the Hasse–Minkowski Theorem". Number Theory Volume I: Tools and Diophantine Equations. Graduate Texts in Mathematics. Vol. 239 (1st ed.). Springer. pp. 312–314. doi:10.1007/978-0-387-49923-9. ISBN 978-0-387-49922-2. OCLC 493636622. Zbl 1119.11001.
Grünbaum, Branko; Shephard, G. C. (1987). "Section 1.4 Symmetry Groups of Tilings". Tilings and Patterns. New York: W. H. Freeman and Company. pp. 40–45. doi:10.2307/2323457. ISBN 0-7167-1193-1. JSTOR 2323457. OCLC 13092426. S2CID 119730123.
Pisanski, Tomaž; Servatius, Brigitte (2013). "Section 1.1: Hexagrammum Mysticum". Configurations from a Graphical Viewpoint. Birkhäuser Advanced Texts (1 ed.). Boston, MA: Birkhäuser. pp. 5–6. doi:10.1007/978-0-8176-8364-1. ISBN 978-0-8176-8363-4. OCLC 811773514. Zbl 1277.05001.
Stacey, Blake C. (2021). A First Course in the Sporadic SICs. Cham, Switzerland: Springer. pp. 2–4. ISBN 978-3-030-76104-2. OCLC 1253477267.
Wells, D. (1987). The Penguin Dictionary of Curious and Interesting Numbers. London: Penguin Books. pp. 171–174. ISBN 0-14-008029-5. OCLC 39262447. S2CID 118329153.

zbmath.org (Global: 2,089^th place; English: 1,141^st place)

Cohen, Henri (2007). "Consequences of the Hasse–Minkowski Theorem". Number Theory Volume I: Tools and Diophantine Equations. Graduate Texts in Mathematics. Vol. 239 (1st ed.). Springer. pp. 312–314. doi:10.1007/978-0-387-49923-9. ISBN 978-0-387-49922-2. OCLC 493636622. Zbl 1119.11001.
Grünbaum, Branko; Shepard, Geoffrey (November 1977). "Tilings by Regular Polygons" (PDF). Mathematics Magazine. 50 (5). Taylor & Francis, Ltd.: 231. doi:10.2307/2689529. JSTOR 2689529. S2CID 123776612. Zbl 0385.51006. Archived from the original (PDF) on 2016-03-03. Retrieved 2023-01-09.
Poonen, Bjorn; Rubinstein, Michael (1998). "The Number of Intersection Points Made by the Diagonals of a Regular Polygon" (PDF). SIAM Journal on Discrete Mathematics. 11 (1). Philadelphia: Society for Industrial and Applied Mathematics: 135–156. arXiv:math/9508209. doi:10.1137/S0895480195281246. MR 1612877. S2CID 8673508. Zbl 0913.51005.
Grünbaum, Branko; Shepard, Geoffrey (November 1977). "Tilings by Regular Polygons" (PDF). Mathematics Magazine. 50 (5). Taylor & Francis, Ltd.: 236. doi:10.2307/2689529. JSTOR 2689529. S2CID 123776612. Zbl 0385.51006. Archived from the original (PDF) on 2016-03-03. Retrieved 2023-01-09.
Pisanski, Tomaž; Servatius, Brigitte (2013). "Section 1.1: Hexagrammum Mysticum". Configurations from a Graphical Viewpoint. Birkhäuser Advanced Texts (1 ed.). Boston, MA: Birkhäuser. pp. 5–6. doi:10.1007/978-0-8176-8364-1. ISBN 978-0-8176-8363-4. OCLC 811773514. Zbl 1277.05001.
Massey, William S. (December 1983). "Cross products of vectors in higher dimensional Euclidean spaces" (PDF). The American Mathematical Monthly. 90 (10). Taylor & Francis, Ltd: 697–701. doi:10.2307/2323537. JSTOR 2323537. S2CID 43318100. Zbl 0532.55011. Archived from the original (PDF) on 2021-02-26. Retrieved 2023-02-23.
Behrens, M.; Hill, M.; Hopkins, M. J.; Mahowald, M. (2020). "Detecting exotic spheres in low dimensions using coker J". Journal of the London Mathematical Society. 101 (3). London Mathematical Society: 1173. arXiv:1708.06854. doi:10.1112/jlms.12301. MR 4111938. S2CID 119170255. Zbl 1460.55017.
Tumarkin, Pavel; Felikson, Anna (2008). "On d-dimensional compact hyperbolic Coxeter polytopes with d + 4 facets" (PDF). Transactions of the Moscow Mathematical Society. 69. Providence, R.I.: American Mathematical Society (Translation): 105–151. doi:10.1090/S0077-1554-08-00172-6. MR 2549446. S2CID 37141102. Zbl 1208.52012.

7 (English Wikipedia)

adu.by (Global: low place; English: low place)

ams.org (Global: 434th place; English: 249th place)

mathscinet.ams.org

ams.org

archive.org (Global: 6th place; English: 6th place)

arxiv.org (Global: 49th place; English: 31st place)

books.google.com (Global: 3rd place; English: 3rd place)

britannica.com (Global: 37th place; English: 64th place)

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doi.org (Global: 2nd place; English: 2nd place)

ebooks.edu.gr (Global: low place; English: low place)

gizmodo.com (Global: 763rd place; English: 486th place)

gruze.org (Global: low place; English: low place)

iltalehti.fi (Global: 834th place; English: 2,868th place)

jstor.org (Global: 23rd place; English: 15th place)

maa.org (Global: 4,358th place; English: 2,907th place)

mit.edu (Global: 476th place; English: 340th place)

math.mit.edu

oeis.org (Global: 1,188th place; English: 866th place)

pour-enfants.fr (Global: low place; English: low place)

researchgate.net (Global: 96th place; English: 89th place)

scientificamerican.com (Global: 1,110th place; English: 817th place)

semanticscholar.org (Global: 15th place; English: 8th place)

api.semanticscholar.org

pdfs.semanticscholar.org

springer.com (Global: 182nd place; English: 172nd place)

link.springer.com

tekniikkatalous.fi (Global: low place; English: low place)

ucr.edu (Global: 1,400th place; English: 754th place)

math.ucr.edu

web.archive.org (Global: 1st place; English: 1st place)

wiley.com (Global: 150th place; English: 174th place)

onlinelibrary.wiley.com

wolfram.com (Global: 1,091st place; English: 1,169th place)

mathworld.wolfram.com

worldcat.org (Global: 4th place; English: 4th place)

search.worldcat.org

zbmath.org (Global: 2,089th place; English: 1,141st place)

ams.org (Global: 434^th place; English: 249^th place)

archive.org (Global: 6^th place; English: 6^th place)

arxiv.org (Global: 49^th place; English: 31^st place)

books.google.com (Global: 3^rd place; English: 3^rd place)

britannica.com (Global: 37^th place; English: 64^th place)

doi.org (Global: 2^nd place; English: 2^nd place)

gizmodo.com (Global: 763^rd place; English: 486^th place)

iltalehti.fi (Global: 834^th place; English: 2,868^th place)

jstor.org (Global: 23^rd place; English: 15^th place)

maa.org (Global: 4,358^th place; English: 2,907^th place)

mit.edu (Global: 476^th place; English: 340^th place)

oeis.org (Global: 1,188^th place; English: 866^th place)

researchgate.net (Global: 96^th place; English: 89^th place)

scientificamerican.com (Global: 1,110^th place; English: 817^th place)

semanticscholar.org (Global: 15^th place; English: 8^th place)

springer.com (Global: 182^nd place; English: 172^nd place)

ucr.edu (Global: 1,400^th place; English: 754^th place)

web.archive.org (Global: 1^st place; English: 1^st place)

wiley.com (Global: 150^th place; English: 174^th place)

wolfram.com (Global: 1,091^st place; English: 1,169^th place)

worldcat.org (Global: 4^th place; English: 4^th place)

zbmath.org (Global: 2,089^th place; English: 1,141^st place)