For every positive evan 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
Between 2 and 10
10 and 20
20 and 30
30 and 40
greater than 40
Please, could someone explain this problem to me? Thank you in advance for you time.