Prime and composite

Front

What is a prime number?

Back

A prime number is a number with ONLY two factors: 1 and itself.

Tags

CCSS.4.OA.B.4

Front

What is a composite number?

Back

A composite number is a number that has MORE than two factors.

Tags

CCSS.4.OA.B.4

Front

Is 1 a prime number?

Back

No, 1 is neither prime nor composite.

Tags

CCSS.4.OA.B.4

Front

Is 2 a prime number?

Back

Yes, 2 is the only even prime number.

Tags

CCSS.4.OA.B.4

Front

What are factors?

Back

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

Tags

CCSS.4.OA.B.4

Front

How many factors does the number 5 have?

Back

5 has 2 factors: 1 and 5.

Tags

CCSS.4.OA.B.4

Front

How many factors does the number 6 have?

Back

6 has 4 factors: 1, 2, 3, and 6.

Tags

CCSS.4.OA.B.4

Front

Is 9 a prime or composite number?

Back

9 is composite because it has 3 factors: 1, 3, and 9.

Tags

CCSS.4.OA.B.4

Front

What is the smallest prime number?

Back

The smallest prime number is 2.

Tags

CCSS.4.OA.B.4

Front

What is the largest single-digit prime number?

Back

The largest single-digit prime number is 7.

Tags

CCSS.4.OA.B.4