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

List the first five prime numbers.

Back

2, 3, 5, 7, 11.

Front

What is a composite number?

Back

A composite number is a natural number greater than 1 that is not prime, meaning it has more than two positive divisors.

Front

Is 15 a prime or composite number?

Back

Composite.

Front

What are the factors of a number?

Back

Factors of a number are the integers that can be multiplied together to produce that number.

Front

List the factors of 20.

Back

1, 2, 4, 5, 10, 20.

Front

What is a multiple of a number?

Back

A multiple of a number is the product of that number and an integer.

Front

List the first five multiples of 3.

Back

3, 6, 9, 12, 15.

Front

How do you determine if a number is a factor of another number?

Back

A number is a factor of another number if the second number can be divided by the first number without leaving a remainder.

Front

Is 12 a prime or composite number?

Back

Composite.