Factors, Prime & Composite

Front

What are factors?

Back

Numbers that can be multiplied together to make a product.

Front

Which of the following is not a prime number: 41, 43, 45, 47?

Back

45

Front

Which number is NOT prime: 3, 7, 17, 21?

Back

21

Front

List all the factors for 27.

Back

1, 3, 9, 27

Front

Which number below is NOT PRIME: 2, 11, 13, 18?

Back

18

Front

What is a prime number?

Back

A number greater than 1 that has no positive divisors other than 1 and itself.

Front

What is a composite number?

Back

A number that has more than two positive divisors.

Front

Is 1 a prime number?

Back

No, 1 is not considered a prime number.

Front

What are the first five prime numbers?

Back

2, 3, 5, 7, 11.

Front

What is the smallest composite number?

Back

4.