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November 5th, 2009, 07:06 AM
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| | Another coprime proof Hi all,
Prove that if gcd(a,m) = gcd(b,m) = 1 then gcd(ab,m) = 1. | 
November 5th, 2009, 07:34 AM
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| | Quote:
Originally Posted by sirellwood Hi all,
Prove that if gcd(a,m) = gcd(b,m) = 1 then gcd(ab,m) = 1. |
Suppose there's a prime p s.t. p divides ab and m ==> (p divides a or p divides b) and (p divides m) ==>....
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November 5th, 2009, 10:05 AM
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