Factors and Multiples

Front

What are factors?

Back

Factors are numbers that can be multiplied together to get another number. For example, the factors of 12 are 1, 2, 3, 4, 6, and 12.

Front

What are multiples?

Back

Multiples are the result of multiplying a number by an integer. For example, the multiples of 3 are 3, 6, 9, 12, 15, etc.

Front

What are all the factors of 16?

Back

1, 2, 4, 8, 16

Front

Which numbers are factors of 18 and 30?

Back

1, 3, 6

Front

Which are factors of 18 and 24?

Back

1, 3, 6

Front

What are all the factors of 48?

Back

1, 2, 4, 6, 8, 12, 16, 24, 48

Front

What is the least common multiple (LCM)?

Back

The least common multiple (LCM) of two numbers is the smallest number that is a multiple of both. 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 numbers is the largest number that divides both of them without leaving a remainder. For example, the GCF of 12 and 16 is 4.

Front

Which is a multiple of 7 and 8?

Back

56

Front

How do you find the factors of a number?

Back

To find the factors of a number, divide it by integers starting from 1 up to that number. If the division results in a whole number, both the divisor and the quotient are factors.