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标题: FeiFei math 1-26 [打印本页]

作者: shinelily528    时间: 2008-8-8 09:20     标题: FeiFei math 1-26

26n=ABCD(A-D均大于1的质数),问n除了1之外有几个因子?

【答案】:15

【思路】:C41+C42+C43+C442^4-1

Any one has any detailed explanations on this math problem, many thanks


作者: willandgracer    时间: 2008-8-11 06:31

同问,低能!




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