Prime and 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

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

Is 1 a prime number?

Back

No, 1 is not considered a prime number.

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 a prime number: 4, 5, 6?

Back

5 is a prime number.

Front

What is the prime factorization of 12?

Back

The prime factorization of 12 is 2 x 2 x 3 or 2^2 x 3.

Front

How many factors does the number 6 have?

Back

The number 6 has four factors: 1, 2, 3, and 6.

Front

Is 9 a prime number?

Back

No, 9 is not a prime number because it has factors 1, 3, and 9.