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#1 2008-09-13 09:35:29
- tony123
- Member
- Registered: 2007-08-03
- Posts: 229
N!
For a positive integer,
, we define N! (read N factorial) tobe the product of all the integers from 1 to N. Thus:
It is clear that N! will end in a zero if N is larger or equal to
5. For big values of N, N! will end in many, many zeros.
How many zeros will end in?
Last edited by tony123 (2008-09-13 09:38:07)
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#2 2008-09-13 10:17:47
- mathsyperson
- Moderator
- Registered: 2005-06-22
- Posts: 4,900
Re: N!
75/5 + 75/5² = 18.
Why did the vector cross the road?
It wanted to be normal.
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