How many positive factors does the integer 180 have?

✓ Correct Answer: Option C

First, find the prime factorization of 180: 180 = 2^2 * 3^2 * 5^1. The number of positive factors is found by adding 1 to each exponent and multiplying the results: (2+1)(2+1)(1+1) = 3 * 3 * 2 = 18.