Recent content by HussamLawen

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    Undergrad Why 30 is the largest integer such that none of its ?

    Why 30 is the largest integer such that none of its...? Why 30 is the largest integer such that none of its totatives are composite? which means All the coprime numbers that below 30 are primes.. 30=> 7,11,13,17,19,23,29 ?// and if you have a proof that it is the biggest integer please Help...
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    Graduate What is the proof for GCD(n.m)=1 if 2^m-1 and 2^n-1 have a common divisor of 1?

    sorry n,m Integers****
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    Graduate What is the proof for GCD(n.m)=1 if 2^m-1 and 2^n-1 have a common divisor of 1?

    Hi i need help to prove this theory: GCD(n.m)=1 <=> GCD((2^n)-1,(2^m)-1)=1 n,m real numbers