作者PINKENVI (是一條不歸路)
看板GMAT
標題[計量] pp2-ds-3
時間Fri Aug 15 11:10:17 2008
3.
How many different prime numbers are factors of the positive integer n ?
(1) Four different prime numbers are factors of 2n.
(2) Four different prime numbers are factors of n^2.
Ans: B
想請教這題!
謝謝!
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