Factors and Multiples

A factor of a number is a whole number that divides into that number.

A question may ask your child to find common factors of two numbers. This can be done by listing the factors of both numbers and identifying numbers that appear in both lists.

A multiple of a number is found by multiplying a whole number by another whole number. The exam may ask your child to find common multiples of 2 whole numbers. In a similar way to finding common factors, common multiples can be found by listing multiples of each number and identifying numbers that appear on both lists.