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Discrete Math
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OpenStudy (anonymous):
If gcd(a,b)=c, prove C^2|ab I have tried going c=ma+nb, but I am not sure where to go after here, squaring it seems to show me nothing, any advice to get me going on this?
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OpenStudy (dumbcow):
try this: a = mc b = nc ab = (mc)(nc) = mnc^2 thus c^2 divides evenly into mnc^2
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