Prime and composite

Front

What is a prime number?

Back

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

Front

What is a composite number?

Back

A composite number is a number with MORE THAN two factors.

Front

Which list has ONLY composite numbers?

Back

8, 16, 24

Front

Which of the following numbers is not a factor of 24?

Back

7

Front

All even numbers have which number as a factor?

Back

2

Front

What are the factors of 8?

Back

1, 2, 4, 8

Front

What are the factors of 15?

Back

1, 3, 5, 15

Front

Is 1 a prime number?

Back

No, 1 is not a prime number because it has only one factor.

Front

Is 2 a prime number?

Back

Yes, 2 is a prime number because it has only two factors: 1 and 2.

Front

Is 4 a composite number?

Back

Yes, 4 is a composite number because it has more than two factors: 1, 2, and 4.