Factors / Multiples / Primes / Composites

Front

What is a multiple?

Back

A multiple of a number is the result of multiplying that number by an integer. For example, multiples of 4 are 4, 8, 12, 16, etc.

Front

What are the first five multiples of 3?

Back

The first five multiples of 3 are 3, 6, 9, 12, and 15.

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. For example, 2, 3, 5, and 7 are prime numbers.

Front

What is a composite number?

Back

A composite number is a natural number greater than 1 that has more than two positive divisors. For example, 4, 6, 8, and 9 are composite numbers.

Front

Is 1 a prime number?

Back

No, 1 is neither a prime nor a composite number.

Front

List all the factors of 12.

Back

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

Front

What is the greatest common factor (GCF) of 8 and 12?

Back

The GCF of 8 and 12 is 4.

Front

What is the least common multiple (LCM) of 4 and 5?

Back

The LCM of 4 and 5 is 20.

Front

Is 17 a prime or composite number?

Back

17 is a prime number.

Front

Is 18 a prime or composite number?

Back

18 is a composite number.