![]() ![]() ![]() The octonions are alternative and power-associative, while the sedenions are only power-associative. ![]() The quaternions loose a further commutative algebraic property, while holding associative, alternative, and power-associative properties. Four is the sum and product of two with itself: 2, without being ordered. It is a square number, the smallest semiprime and composite number, and is considered unlucky in many East Asian cultures.įour is the smallest composite number, its proper divisors being 1 and 2. Infos sur Quatre mariages et un enterrement Réalisé par Mike Newell Écrit par Richard Curtis Grande-Bretagne - 1h57 - Drame, Comédie Titre original : Four Weddings and a Funeral Sortie le 27. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features Press Copyright Contact us Creators. It is the natural number following 3 and preceding 5. 4 ( four) is a number, numeral and digit. ![]()
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