The GCD is the greatest integer that can divide two other integers without any remainder. The LCM is the smallest integer that is a multiple of two other integers.
The GCD and LCM are used to find the greatest common divisor and least common multiple of two numbers. The GCD is a positive integer that divides evenly into two other positive integers without any remainder.
The GCD and LCM are used in many applications in mathematics, engineering, and other disciplines.