400-1816-180
本題由lindy提供
For every positive even integer n, the function h(n) 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
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答案：
E
每一個(gè)偶
P是最小的質(zhì)因數(shù)h(100）+1 p=
f(100)+1= (2 * 1) * (2 * 2) * (2 * 3) *（2*4） ... 8*(2 * 50)+1=（1*2*3*4...*50）X2^50+1=2*A+1=3*B+1=4*C+1=5*D+1....=50*x+1,所以，f(100)+1/2余數(shù)是1，/3余數(shù)為1，等等，/50余數(shù)也為1，即它們都不可以被2-50之間的數(shù)字整除
約數(shù)肯定也大于50.
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