Prep 数学题...

scorpio2rd

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. btw 2 - 10

B. btw 10 - 20

C.btw 20-30

D. btw 30-40

E greater than 40

answer: E

这题我蒙对的.但是不知道如何解.

sarahzhensh

这题讨论过多次好像，请楼主搜一下