Prime and Composite Odd Even

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

Is 1 a prime number or a composite number?

Back

1 is neither a prime nor a composite number.

Front

What are even numbers?

Back

Even numbers are integers that are divisible by 2.

Front

What are odd numbers?

Back

Odd numbers are integers that are not divisible by 2.

Front

List the first five prime numbers.

Back

2, 3, 5, 7, 11.

Front

List the first five composite numbers.

Back

4, 6, 8, 9, 10.

Front

What is the smallest composite number?

Back

The smallest composite number is 4.

Front

What is the largest prime number less than 20?

Back

The largest prime number less than 20 is 19.

Front

Is 15 a prime or composite number?

Back

15 is a composite number.