If 150!/10^n is an integer, what is the largest possible value of n?  Choose the correct choice from the following
A) 38	B) 47	C) 32	D) 36	E) 37

Rationale: the question actually asks the highest power of 10 which divides 150 ! ( for a number to be an integer - without any remainder all the trailing zeroe ' s must be divided by the denominator ) 10 = 2 x 5 150 factorial will have 37 as - 150 / 5 = 30 30 / 5 = 6 6 / 5 = 1 so answer will be ( e ) 37
Answer: E