(a,b)=1 and c divides a+b prove (a,c)=1 and (b,c)=1
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Let and .
Since , then that means and as both are factors of .
However, since and & and , then and .
This means and . But . Conclude?
Can you conclude?
Last edited by o_O; October 5th 2008 at 07:57 PM.
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