Multiples and Factors

Front

What is a multiple?

Back

A multiple of a number is the product of that number and an integer. For example, the multiples of 3 are 3, 6, 9, 12, 15, etc.

Front

What is a factor?

Back

A factor of a number is a whole number that can be divided evenly into that number. For example, the factors of 12 are 1, 2, 3, 4, 6, and 12.

Front

What does GCF stand for?

Back

GCF stands for Greatest Common Factor, which is the largest number that divides two or more numbers without leaving a remainder.

Front

What does LCM stand for?

Back

LCM stands for Least Common Multiple, which is the smallest multiple that is exactly divisible by two or more numbers.

Front

Find the GCF of 12 and 16.

Back

The GCF of 12 and 16 is 4.

Front

Find the GCF of 18 and 24.

Back

The GCF of 18 and 24 is 6.

Front

Find the LCM of 4 and 5.

Back

The LCM of 4 and 5 is 20.

Front

Find the LCM of 8 and 12.

Back

The LCM of 8 and 12 is 24.

Front

How do you find the GCF of two numbers?

Back

To find the GCF, list the factors of each number and identify the largest factor they have in common.

Front

How do you find the LCM of two numbers?

Back

To find the LCM, list the multiples of each number and identify the smallest multiple they have in common.