Let a, b, and c be positive integers.(adsbygoogle = window.adsbygoogle || []).push({});

I need to prove two items...

1. abc = GCD(a,b,c) * LCM(ab,bc,ac)

2. abc = GCD(ab,ac,bc) * LCM(a,b,c)

where the GCD is the Greatest Common Divisor and the LCM is the Least Common Multiple.

Could I go ahead and say that (a,b,c)=1, that is relatively prime? Am I wrong in saying this part? If so, what could I say to make it right?

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# Proving with GCD and LCM

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