Factors, Prime & Composite, & Prime Factorization

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 a composite number?

Back

A composite number is a natural number greater than 1 that has more than two positive divisors.

Tags

CCSS.4.OA.B.4

Front

Is 1 a prime number?

Back

No, 1 is not considered a prime number.

Tags

CCSS.4.OA.B.4

Front

What is the prime factorization of 30?

Back

Front

List the first five prime numbers.

Back

2, 3, 5, 7, 11.

Tags

CCSS.4.OA.B.4

Front

What is the prime factorization of 36?

Back

Front

How do you find the factors of a number?

Back

To find the factors of a number, divide it by all integers from 1 to that number and check which divisions result in whole numbers.

Tags

CCSS.4.OA.B.4

Front

What are the factors of 12?

Back

1, 2, 3, 4, 6, 12.

Tags

CCSS.4.OA.B.4

Front

What is the prime factorization of 18?

Back

Front

Which of the following is a prime number: 15, 17, 21?

Back

17 is a prime number.

Tags

CCSS.4.OA.B.4