GCF

Front

What is the greatest common factor (GCF)?

Back

The greatest common factor (GCF) is the largest positive integer that divides all the numbers in a given set without leaving a remainder.

Front

How do you find the GCF of two numbers?

Back

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

Front

What are factors?

Back

Factors are numbers that can be multiplied together to get another number. For example, the factors of 15 are 1, 3, 5, and 15.

Tags

CCSS.4.OA.B.4

Front

What is the GCF of 12 and 18?

Back

The GCF of 12 and 18 is 6.

Front

What is the GCF of 8 and 20?

Back

The GCF of 8 and 20 is 4.

Front

What is the GCF of 9 and 27?

Back

The GCF of 9 and 27 is 9.

Front

What is the prime factorization of 30?

Back

The prime factorization of 30 is 2 x 3 x 5.

Front

How can prime factorization help in finding the GCF?

Back

By finding the prime factorization of each number, you can identify the common prime factors and multiply them to find the GCF.

Front

What is the GCF of 24 and 36?

Back

The GCF of 24 and 36 is 12.

Front

What is the relationship between GCF and LCM?

Back

The GCF (Greatest Common Factor) and LCM (Least Common Multiple) of two numbers are related by the formula: GCF x LCM = Product of the two numbers.