Factors and Multiples

Front

What is a factor?

Back

A factor is a whole number that can be divided evenly into another number. For example, 6 is a factor of 48 because 48 ÷ 6 = 8.

Front

What is a multiple?

Back

A multiple is the result of multiplying a number by an integer. For example, the multiples of 9 include 9, 18, 27, etc.

Front

What is the first prime number?

Back

The first prime number is 2. A prime number is a number greater than 1 that has no positive divisors other than 1 and itself.

Front

Which number is a multiple of 8?

Back

16 is a multiple of 8 because 8 × 2 = 16.

Front

Which number is a factor of 25?

Back

1 and 5 are factors of 25 because 25 ÷ 1 = 25 and 25 ÷ 5 = 5.

Front

What is the least common multiple (LCM)?

Back

The least common multiple (LCM) of two or more numbers is the smallest number that is a multiple of each of the numbers. For example, the LCM of 4 and 5 is 20.

Front

What is the greatest common factor (GCF)?

Back

The greatest common factor (GCF) of two or more numbers is the largest number that divides each of the numbers without leaving a remainder. For example, the GCF of 12 and 16 is 4.

Front

Is 4 a multiple of 8?

Back

No, 4 is not a multiple of 8 because 8 cannot be multiplied by any whole number to equal 4.

Front

What are the first five multiples of 3?

Back

The first five multiples of 3 are 3, 6, 9, 12, and 15.

Front

What is a composite number?

Back

A composite number is a whole number greater than 1 that is not prime, meaning it has more than two factors. For example, 4 is composite because it has factors 1, 2, and 4.