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 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 prime number?

Back

The smallest prime number is 2.

Front

What is the smallest composite number?

Back

The smallest composite number is 4.

Front

How many factors does a prime number have?

Back

A prime number has exactly two factors: 1 and itself.

Front

How many factors does a composite number have?

Back

A composite number has three or more factors.

Front

Is the number 1 prime, composite, or neither?

Back

Neither; 1 is not considered a prime or composite number.

Front

What is a factor?

Back

A factor is a whole number that can be divided evenly into another number.