Finding GCF

Front

What is the Greatest Common Factor (GCF)?

Back

The 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, list the factors of each number, then identify the largest factor that appears in both lists.

Front

What is the GCF of 5 and 35?

Back

5

Front

What is the GCF of 10 and 12?

Back

2

Front

What is the GCF of 16 and 18?

Back

2

Front

What is the GCF of 4 and 12?

Back

4

Front

What is the GCF of 5 and 7?

Back

1

Front

What are factors?

Back

Factors are numbers that can be multiplied together to get another number.

Tags

CCSS.4.OA.B.4

Front

What is a prime number?

Back

A prime number is a natural number greater than 1 that has no positive divisors other than 1 and itself.

Tags

CCSS.4.OA.B.4

Front

What is the relationship between GCF and prime factorization?

Back

The GCF can be found by multiplying the lowest powers of all prime factors common to the numbers.