Prime and Composite numbers

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

List the first 5 multiples of 3.

Back

3, 6, 9, 12, 15

Front

What are the factors of 6?

Back

1, 2, 3, 6

Front

List all the prime numbers less than 12.

Back

2, 3, 5, 7, 11

Front

What is the definition of a factor?

Back

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

Front

What is the definition of a multiple?

Back

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

Front

Which number is a multiple of 9?

Back

18

Front

What is the greatest common factor (GCF) of 12 and 15?

Back

The GCF of 12 and 15 is 3.

Front

What is the least common multiple (LCM) of 3 and 4?

Back

The LCM of 3 and 4 is 12.