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Prep的数学题For every positive even integer n,the function h(n)

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Prep的数学题
For every positive even integer n,the function h(n) is defined to be the product of all the even integers from 2 to n,inclusive.If p is the smallest prime factor of h(100)+1,then p is
A.Between 2 and 10
B.Between 10 and 20
C.Between 20 and 30
D.Between 30 and 40
E.Greater than 40
因为h(100)整除50以内的所有整数,所以h(100)+1不能整除50以内的数(因为1不能整除)