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

What is the smallest prime number?

Back

The smallest prime number is 2.

Front

What is the only even prime number?

Back

The only even prime number is 2.

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 number is neither prime nor composite?

Back

The number 1 is neither prime nor composite.

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.

Front

List the first five prime numbers.

Back

The first five prime numbers are 2, 3, 5, 7, and 11.

Front

What is the prime factorization of 28?

Back

The prime factorization of 28 is 2 x 2 x 7 or 2^2 x 7.