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討論串[代數]請前輩指點一下整數証明~急!謝謝
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Another proof:. Suppose otherwise.. By permuting a,b,c, we may assume there is a prime p such that. v_p(a) >= v_p(b) >= v_p(c) (*). and not both equal
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Without loss of the generality, we may assume gcd(a, b, c) = 1.. Let Z1 = a/b + b/c + c/a and Z2 = b/a + c/b + a/c, so Z1 and Z2 are. two integers. No
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