[計量] 請教猴哥112裡的一題
How many positive interger can be expressed
as a product of two or more of the prime number
5, 7, 11, and 13 if no one product is to include the
same prime factor more than one?
不是很清楚題目要問什麼
網路上的解答又剛好沒有
煩請大家幫忙
謝謝~~
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