Nasty Little Veritas Factorial Question

Hi there! My understanding of factorials is weak, so when I rolled across this question in my Veritas Prep Arithmetic book, I was stumped. #82 x is the product of all even numbers from 2 to 50, inclusive. The smallest prime factor of x + 1 must be: A) Between 1 and 10 B) Between 11 and 15 C) Between...