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Problem 13 - Entrance Test

Find the number of positive integer divisors of 360.

Correct: C

First, find the prime factorization of 360: 360 = 2^3 * 3^2 * 5^1. The number of divisors is found by adding 1 to each exponent and multiplying the results: (3+1)(2+1)(1+1) = 4 * 3 * 2 = 24.