If 7^n is a factor of the product of the integers from 1 to 100, inclusive, what is the largest value of n?
Choose one:
A) 12
B) 13
C) 14
D) 15
E) 16
So the question just means that we have to find all the multiples of 7 between 1 to 100   there are 14 multiples of 7 ( 7 - 98)   But 49 and 98 contain two 7's as factors   so we have to add  14 + 2= 
<gadget id="calculator"> 14 + 2</gadget>
<output>16</output>
16   ANSW16R:16
<result>E</result>
If 7^n is a factor of the product of the integers from 1 to 100, inclusive, what is the largest value of n?