Prime and Composite numbers, and Factors

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

What is a factor?

Back

A factor is a whole number that can be divided evenly into another number.

Front

List all the factors of 12 from least to greatest.

Back

1, 2, 3, 4, 6, 12

Front

True or False: A prime number has only one factor pair.

Back

True

Front

True or False: The number 1 is a prime number.

Back

False

Front

What is the smallest prime number?

Back

The smallest prime number is 2.

Front

What is the largest two-digit prime number?

Back

The largest two-digit prime number is 97.

Front

List all the factors of 20 from least to greatest.

Back

1, 2, 4, 5, 10, 20

Front

How many factors does the number 9 have?

Back

The number 9 has three factors: 1, 3, and 9.