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Factors and Multiples (Ages 8-10) Worksheets (Space themed)

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  • Factors are numbers we can multiply together to get another number.
  • Common factors are those that are found in both list of two whole numbers.
  • Greatest Common Factor is the largest factor that two or more numbers have in common.
  • Multiple is the product result of one number multiplied by another number.
  • Least Common Multiple is the smallest number that is a multiple of both numbers.


A number can have many factors:
The factors of 12 are 1, 2, 3, 4, 6 and 12 …
… because 2 × 6 = 12, or 4 × 3 = 12, or 1 × 12 = 12.


  • It is often abbreviated to the GCF.
  • If there are no other common factors, then the gcf is 1 (as 1 is a factor of all positive integers.)
  • GCF is the same as the Highest Common Factor, and the Greatest Common Divisor.


  • It is often abbreviated to the LCM.
  • You can always find a common multiple of two numbers by multiplying them together, but this may not always be the least common multiple (as there may be a smaller common multiple).

Factors and Multiples Worksheets

This is a fantastic bundle which includes everything you need to know about Factors and Multiples across 15+ in-depth pages. 

Each ready to use worksheet collection includes 10 activities and an answer guide. Not teaching common core standards? Don’t worry! All our worksheets are completely editable so can be tailored for your curriculum and target audience.

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