Prime Vs. Composite

Front

What is a prime number?

Back

A prime number is a number greater than 1 that has exactly two factors: 1 and itself.

Front

What is a composite number?

Back

A composite number is a number greater than 1 that has more than two factors.

Front

How can you identify prime and composite numbers?

Back

By how many factors they have!

Front

True or False: A prime number has only two factors.

Back

True

Front

Which of the following is a prime number: 15, 17, 21, 39?

Back

17

Front

What number is considered a special number?

Back

1, because it is neither prime nor composite.

Front

True or False: A prime number has only one and itself as factors.

Back

True

Front

List the first five prime numbers.

Back

2, 3, 5, 7, 11.

Front

What is the smallest prime number?

Back

2.

Front

Is the number 1 a prime number?

Back

No, 1 is not a prime number.