For given positive integer n, take factorial of that number. How many trailing zeros does it have?
Example: factorial(11) = 39916800
Its last zero-digit count is 2.
Optional: Can you make an efficient algorithm for a very large n?
Prime factor digits
Return the Fibonacci Sequence
Center of mass
Rounding off numbers to n decimals
Matlab Basics II - Minimum
Number of even divisors of a given number
Number of paths on a n-dimensional grid
Equal temperament - musical notes and frequency
The last non-zero digit of a factorial
Smallest n, for n! to have m trailing zero digits
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