DWITE Online Computer Programming Contest, February 2008, Problem 2
Integer numbers are made up of factors, smallest numbers that when multiplied together form the original number. Factors are always prime.
We care about this because factors are often involved in cryptography:
When the numbers are very large, no efficient integer factorization algorithm is publicly known; a recent effort which factored a
-digit number (RSA-200) took eighteen months and used over half a century of computer time.
Though we'll be dealing with much smaller numbers for now.
The input will contain 5 lines, integers
The output will contain 5 lines – a total number of factors in a number.
Sample Input
3
4
5
12
32
Sample Output
0
2
0
3
5
Problem Resource: DWITE
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