Factors and Multiples

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 is a number that can be divided by another number without a remainder, often found by multiplying the number by an integer.

Front

List the factors of 48.

Back

The factors of 48 are 1, 2, 3, 4, 6, 8, 12, 16, 24, and 48.

Front

List the factors of 25.

Back

The factors of 25 are 1, 5, and 25.

Front

What is a composite number?

Back

A composite number is a number that has more than two 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

Identify a composite number from the following: 11, 13, 21, 23.

Back

21 is a composite number.

Front

Identify a prime number from the following: 11, 13, 21, 23.

Back

11, 13, and 23 are prime numbers.

Front

What is the least common multiple (LCM) of 4 and 5?

Back

The LCM of 4 and 5 is 20.

Front

What is the greatest common factor (GCF) of 12 and 16?

Back

The GCF of 12 and 16 is 4.