Prime & Composite

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 7 a prime number?

Back

Yes, 7 is a prime number because its only factors are 1 and 7.

Front

List the factors of 54.

Back

The factors of 54 are 1, 2, 3, 6, 9, 18, 27, and 54.

Front

What is a factor?

Back

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

Front

What is a multiple?

Back

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

Front

Which of the following is a factor of 27? 1, 2, 3, 4, 5, 6, 9, 27

Back

The factors of 27 are 1, 3, 9, and 27.

Front

What is the smallest prime number?

Back

The smallest prime number is 2.

Front

Is 1 a prime number?

Back

No, 1 is not a prime number because it does not meet the definition of having exactly two distinct positive divisors.

Front

Identify the composite numbers from this list: 1, 2, 3, 4, 5, 6, 7, 8.

Back

The composite numbers are 4, 6, and 8.