Prime, Composite, Factors and Multiples

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.

Front

What is a composite number?

Back

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

Front

What are factors?

Back

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

Front

What are multiples?

Back

Multiples of a number are the result of multiplying that number by an integer.

Front

Is 1 a prime number?

Back

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

Front

List the factors of 12.

Back

The factors of 12 are 1, 2, 3, 4, 6, and 12.

Front

What is the smallest prime number?

Back

The smallest prime number is 2.

Front

What is the largest prime number less than 20?

Back

The largest prime number less than 20 is 19.

Front

Which of the following is a multiple of 5? 10, 12, 14, 16

Back

10 is a multiple of 5.

Front

Which number is not a multiple of 6? 18, 24, 30, 35

Back

35 is not a multiple of 6.