If n is a positive integer and the product of all integers from 1 to n, inclusive, is a multiple of 420, what is the least possible value of n?	Choose the correct choice from the following answers
A) 5
B) 7
C) 9
D) 11
E) 12
420 = 2*2*3*5*7, so n must be at least 7.   The answer is 7.
<result>B</result>
If n is a positive integer and the product of all integers from 1 to n, inclusive, is a multiple of 420, what is the least possible value of n?