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The number of factors of an integer can be found by adding 1 to the exponent of each prime factor and then calculating the product. For example, the prime factorization of 12 is 2² * 3 and 12 has (2 + 1)(1 + 1) = 6 factors.

Submitted: 1999-09-02 18:40:00; Last Modified: 2008-02-06 14:42:56.