The lowest common multiple of 24 and 40 is 120. The number 24 multiplied by 5 is 120, and 40 multiplied by 3 is also 120.
The lowest common multiple between two numbers refers to the smallest number that is multiple of both numbers. A multiple of a base number is any number that is a result of multiplying that base number by an integer. To determine the lowest common multiple, list out multiples for each number until a common multiple is identified. For 24, the first five multiples are 24, 48, 72, 96 and 120, and the first three multiples of 40 are 40, 80 and 120. The first common multiple is 120.