What is the lowest number that four and five can go into evenly?

Answer 1

The lowest number that two or more numbers can both go into evenly are known as the least common multiple. The easiest way to find the LCM (least common multiple) of two numbers, such as 4 and 5 is to list the multiples of these numbers. The multiple is the answer (product) of the number multiplied by another number. Example: 4 X 1 = 4, 4 X 2 = 8, 4 X 3 = 12, 4 X 4 = 16, 4 X 5 = 20. The multiples I have listed for 4 are 4, 8, 12, 16 and 20. I stopped listing the multiples when I reached 4 X 5 because the number I am comparing to is 5. I then list the multiples of 5 (5, 10, 15, 20) The least common multiple between 4 and 5 is 20 because it is the first multiple they have in common, which means that 20 is the lowest number that 4 and 5 can go into evenly.