the smallest positive whole number that is exactly divisible by two or more given whole numbers: the least common multiple of 4, 5, and 10 is 20
See least common multiple in American Heritage Dictionary 4
noun Abbr. lcm
The smallest quantity that is divisible by two or more given quantities without a remainder: 12 is the least common multiple of 2, 3, 4, and 6. Also called lowest common multiple.