Diff — 7
Revision #697 → #974 · back to history
added7 as a natural number64e0796e285a
added7 is the only prime preceding a cube246f22b9d850
added7 is a Mersenne prime and double Mersenne prime6cfdf90b167e
added7 is the lowest natural number not a sum of three squaresb2ea9e7c0f7c
addedHeptagonc78da1d80c0e
addedHeptagon is first non-constructible regular polygonac2dbd30b5e5
addedRamanujan–Nagell equationce4222890ed7
addedQuadratic form representing all odd numbersb72f44240963
addedSeven frieze groups74d5f51857e1
addedHeptagon plane-vertex tiling601ac03a4c97
addedMax intersecting diagonals bound4adf79553f17
added7-uniform Krotenheerdt tilings7fe1a4a652f9
addedFano plane505e6214b2b9
addedOctonion square roots of −1b52a73b049ab
addedSeven-dimensional cross productd4da562464ff
addedLowest exotic sphere dimensiona3e696307354
addedHypercompact Vinberg polytopes8bdce1ad55e1
addedSeven elementary catastrophesfd80e7e9d78a
addedProbability of rolling 7 on two diced45e88420bf2
addedOpposite faces of a die sum to 77df92301d050
addedMillennium Prize Problems29d0bc48a234
addedReciprocal of 7 repeats six digitsde78a29b8a24