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, 1 is not a prime number.

Front

List the first five prime numbers.

Back

2, 3, 5, 7, 11.

Front

What is the smallest prime number?

Back

The smallest prime number is 2.

Front

Which of the following is a prime number: 4, 5, 6?

Back

5 is a prime number.

Front

Identify the prime numbers between 10 and 20.

Back

11, 13, 17, 19.

Front

What is a factor?

Back

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

Front

Which of the following is NOT a factor of 9: 0, 1, 3, 9?

Back

0 is NOT a factor of 9.

Front

Find the prime number in this list: 12, 5, 6, 21.

Back

5 is the prime number.