Factors, Prime and Composite Numbers

Front

What is a factor?

Back

A factor is a number that divides another number without leaving a remainder.

Front

Is 3 a factor of 12?

Back

Yes

Front

What is a prime number?

Back

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

Front

Which number is a prime number between 30 and 40?

Back

31

Front

Which number is a factor of 10?

Back

5

Front

Which of these numbers is a prime number: 15, 17, 21, 39?

Back

17

Front

Which of these numbers is a prime number: 10, 9, 7, 4?

Back

7

Front

What is a composite number?

Back

A composite number is a positive integer that has at least one positive divisor other than one or itself.

Front

Is 1 a prime number?

Back

No, 1 is not a prime number.

Front

List the first five prime numbers.

Back

2, 3, 5, 7, 11