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Quandaries & Queries
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 Topic: coprime
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 Mutually prime composite numbers 2015-01-09 From nivedita:Two composite number that is mutually prime?Answered by Penny Nom. GCD 2013-05-20 From Julia:Prove that if a and b are coprime integers, the greatest common divisor of a + b and a - b is either 1 or 2.Answered by Penny Nom. How many numbers are relatively prime with 250? 2006-04-19 From David:How many positive integers less than or equal to 250 are relatively prime with 250?Answered by Stephen La Rocque. Deux nombres consécutifs 2010-01-18 From Janot:Bonjour comment peut on faire pour démontrer que si deux nombres sont consécutifs, leur produit et leur somme sont premiers entre eux Merci de me mettre sur la voie , j'ai échoué avec Bezout.Answered by Claude Tardif.

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