In mathematics, a "multiple" is a number that can be obtained by multiplying a given integer by another integer. For example, the multiples of 3 include 3, 6, 9, and 12, as these numbers can be expressed as 3 times 1, 2, 3, and 4, respectively. Multiples are important in various areas of math, including arithmetic and algebra. They help in understanding concepts like factors and divisibility. For instance, knowing the multiples of a number can assist in solving problems related to least common multiples (LCM) and greatest common divisors (GCD).