Multiples are integers formed by multiplying some integer by any other integer. 12 is a multiple of 12 (12 * 1), as are 24 (=12 * 2), 36 (=12 * 3), 48 (=12 * 4), and 60 (=12 * 5).

Negative multiples are also possible in mathematics but are not typically asked on the test. Likewise, 0 is technically a multiple of every integer, since 0 * that integer = 0, which is itself an integer; however, this fact is also generally not asked on the test, which usually restricts divisibility questions to positive integers. Therefore, for the purposes of the test, it is usually helpful to think of multiples as equal to or larger than the integer in question.