The factorial expression 13!/2! is not divisible by which of the following integers?  Pick.
A) 3
B) 5
C) 6
D) 7
E) none of these
13!/2! =&gt; 13 x 12 x 11 x 10 x 9 x8x7x6x5x4x3   (A) 3 Can divide 12 or 9   (B) 5 Can divide 10   (C) 6 Can divide 12   (D) 7 can divide 7, 21,42   Hence answer will be (none of these)
<result>E</result>
The factorial expression 13!/2! is not divisible by which of the following integers?