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

Is the number 1 a prime number?

Back

No, the number 1 is not considered a prime number.

Front

Is the number 2 a prime number?

Back

Yes, 2 is the only even prime number.

Front

What is the smallest prime number?

Back

The smallest prime number is 2.

Front

What is the largest prime number less than 10?

Back

The largest prime number less than 10 is 7.

Front

Which of the following is a composite number: 4, 5, 7?

Back

4 is a composite number because it can be divided by 1, 2, and 4.

Front

Which of the following is a prime number: 9, 11, 15?

Back

11 is a prime number because it can only be divided by 1 and 11.

Front

What is the sum of the first three prime numbers?

Back

The sum of the first three prime numbers (2, 3, and 5) is 10.

Front

How can you determine if a number is prime?

Back

To determine if a number is prime, check if it has any divisors other than 1 and itself.