SOLUTION: In how many zeroes does 127! end? (Note: 127! means 127(126)(125)...(1)).

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Question 119603: In how many zeroes does 127! end? (Note: 127! means 127(126)(125)...(1)).
Answer by scott8148(5880) About Me  (Show Source):
You can put this solution on YOUR website!
for every ten numbers, two zeros will be added

one from the multiplication of 5 by an even quantity, and the other from the number ending in zero

there are 12 sets of ten numbers in 120
___ the additional seven numbers result in an additional zero

an additional zero comes from the double zero of 100

so, 2*12+1+1