Tuesday, 9 September 2014

number theory - Concecutive last zeroes in expansion of 100!








In decimal form, the number 100! ends in how many consecutive zeroes. I am thinking of the factorization of 100! but I am stuck. I try to count them and since there are 10, 20, 30,..., 100, there are at least 11 zeros. How should I proceed.

No comments:

Post a Comment

real analysis - How to find limhrightarrow0fracsin(ha)h

How to find lim without lhopital rule? I know when I use lhopital I easy get $$ \lim_{h\rightarrow 0}...