amicable
71number theory — Math. the study of integers and their relation to one another. Also called theory of numbers. [1910 15] * * * Branch of mathematics concerned with properties of and relations among integers. It is a popular subject among amateur mathematicians… …
72Industrial Alliance — Insurance and Financial Services Inc. Type Public Traded as TSX:  …
73Friendly — Friend ly, a. [AS. fre[ e]ndl[imac]ce.] 1. Having the temper and disposition of a friend; disposed to promote the good of another; kind; favorable. [1913 Webster] 2. Appropriate to, or implying, friendship; befitting friends; amicable. [1913… …
74Perfect number — In number theory, a perfect number is a positive integer that is equal to the sum of its proper positive divisors, that is, the sum of its positive divisors excluding the number itself (also known as its aliquot sum). Equivalently, a perfect… …
75Thomas Wolsey — Infobox Archbishop of York name = Thomas Cardinal Wolsey caption = Sampson Strong s portrait of Cardinal Wolsey at Christ Church (1526). birth name = began = 1514 term end = 1530 predecessor = Christopher Bainbridge successor = Edward Lee birth… …
76Michael O'Hare — Born Robert Michael O Hare, Jr. May 6, 1952 (1952 05 06) (age 59) Chicago, Illinois, United States Spouse Ruth O Hare (1998–) Michael O Hare (born May 6, 1952) is an American a …
77Jeffrey Sinclair — Babylon 5 character First appearance Babylon 5: In the Beginning (chronological) (last airdate), The Gathering (airdate) Last appearance …
78Nanban trade — For the Indian film, see Nanban (film). History of Japan The Samurai Hasekura Tsunenaga in Rome in 1615, Coll. Borghese, Rome. Paleolithic 35,000–14,000 BC Jōmon period 14,000–300 BC …
79Thâbit ibn Kurrah rule — is a method for discovering amicable numbers invented in the tenth century by the Arab mathematician Thâbit ibn Kurrah. A later generalization of this rule is Euler s rule. The rule is given in terms of Thâbit ibn Kurrah numbers. For any natural… …
80Euler's rule — Euler s rule, named after Leonhard Euler, is a generalization of Thâbit ibn Kurrah rule for finding amicable numbers. If a = 2 m ×(2 n − m + 1) − 1, b = 2 n ×(2 n − m + 1) − 1, and c = 2 n + m ×(2 n − m + 1)2 − 1 are all prime, for integers 0 < m …
