suneja
how many trailing zeroes does 100! have



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lolly
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2!!!

lolly
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:D

hartnn
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for n!
number of trailing zeros are
= n/5 + n/5^2 +n/5^3 + ......
floor value of each term

hartnn
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here n=100

hartnn
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lol lolly! :P

lolly
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what? lol i did it rong? haha i thought trailing zeros were like how many zeros it had behind it...haha oop..:)

suneja
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k n wats floor value here

hartnn
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floor value means largest integer small than the number.

suneja
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@lolly its 100! NOT 100...

lolly
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what? hah i thought u were excited bout the question..lol

hartnn
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like floor of 3.25 is 3
floor og 101.101 is 101

hartnn
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for 100!
trailing zeros = 100/5 + 100/5^2 +100/5^3 +...
= 20 + 4 + 0 +0 +....
=24
got this ?

suneja
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Yeah. thanks)

hartnn
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welcome :)

suneja
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one more thing here v dnt tak 100/125 cz its comes in deci form .8