How many zeroes are there at the end of the number N, if N = 80! + 160! ?  Select the correct option:	A) 15	B) 19	C) 23	D) 27	E) 31
The number of zeroes at the end of 80! will be less than the number of zeroes at the end of 160!   Hence it is sufficient to calculate the number of zeroes at the end of 80!   The number of zeroes = [80/5] + [80/25] + [80/125] = 16 + 3 + 0= 
<gadget id="calculator">16 + 3 + 0</gadget>
<output>19</output>
19   The answer is 19.
<result>B</result>
How many zeroes are there at the end of the number N, if N = 80! + 160! ?