GMATPrep-T1-PS-7

[changptr]

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


真的乘起來有七八十位吧

看不出個所以然，請高手們幫幫忙囉
TKS !!!

答案 (E)

[cktseng]

http://www.formosamba.com/phpBB3/viewtopi ... ime+factor
http://www.formosamba.com/phpBB3/viewtopi ... 4407#64407

[changptr]

Hi cktseng,
got it !
Thanx a lot !!!