Greatest Common Factor & Least Common Multiple

Front

What is the Greatest Common Factor (GCF)?

Back

The GCF is the largest positive integer that divides two or more numbers without leaving a remainder.

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

What is the Least Common Multiple (LCM)?

Back

The LCM is the smallest positive integer that is a multiple of two or more numbers.

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.

Front

What is the GCF of 35 and 49?

Back

7

Front

What is the LCM of 10 and 48?

Back

240

Front

What is the GCF of 10 and 21?

Back

1

Front

What is the LCM of 5 and 11?

Back

55

Front

What is the LCM of 4 and 14?

Back

28

Front

What is a factor?

Back

A factor is a whole number that can be divided evenly into another number.