M2.2 Least Common Multiple

LCM of 6 and 10

30

LCM of 25 and 50

50

LCM of 4 and 9

36

LCM of 14 and 21

42

LCM of 9 and 15

45

What is the LCM of two numbers if one number is a multiple of the other?

The LCM is the greater of the two numbers. For example, the LCM of 4 and 8 is 8.

least common multiple (LCM)

The least number that is a common multiple of two or more numbers. The FIRST multiple shared by both numbers.

LCM of 16 and 24

48

LCM of 5 and 11

55

LCM of 8 and 56

56

LCM of 12 and 30

60

What is the LCM of two numbers that have no common factors greater than 1?

The LCM is the product of the two numbers. For example, the LCM of 4 and 9 is 36.

multiple

The product of a whole number and any other whole number.

common

shared by both numbers

least

smallest or first on a number line

product

the answer to a multiplication problem