for every positive even integer n, the function h(n) is defined to be the product of all the even integer from 2 to n, inclusive. if p is the smallest prime factor of h100)+1, then p is between:
a. 2 to 10 b.10 to 20 c. 20 to 30 d.30 to 40 e.greater than 40
这道题应该怎么做呀,我连点思路都没有,后天就要考了~~~
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