LCM/GCF/Prime Factorization

Front

What is the GCF (Greatest Common Factor)?

Back

The GCF of two or more numbers is the largest number that divides all of them without leaving a remainder.

Front

How do you find the GCF of 32 and 40?

Back

The GCF of 32 and 40 is 8.

Front

What is prime factorization?

Back

Prime factorization is expressing a number as the product of its prime factors.

Front

Use a number tree to find the prime factorization of 42.

Back

The prime factorization of 42 is 7 x 3 x 2.

Tags

CCSS.4.OA.B.4

Front

What is the prime factorization of 8?

Back

The prime factorization of 8 is 2 x 2 x 2.

Tags

CCSS.4.OA.B.4

Front

What is the LCM (Least Common Multiple)?

Back

The LCM of two or more numbers is the smallest number that is a multiple of all of them.

Front

What is the LCM of 5 and 20?

Back

The LCM of 5 and 20 is 20.

Front

How do you find the GCF of 12 and 18?

Back

The GCF of 12 and 18 is 6.

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

List the first five prime numbers.

Back

The first five prime numbers are 2, 3, 5, 7, and 11.

Tags

CCSS.4.OA.B.4