The least number that's is a multiple of two or more whole numbers is the Greatest Common Factor (G.C.F.)
Step-by-step explanation:
A common multiple is a number that is a multiple of two or more numbers. Common multiples of 2 and 3 are 0, 6, 12, 18, ... The least common multiple (LCM) of two numbers is the smallest number (excluding zero) that is a multiple of both of the numbers.