Pass maths · Core number skills

Factors and multiples

Learn the method, then complete five focused questions.

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LZ Method

Factors divide exactly into a number. Multiples are results of multiplying by whole numbers. HCF is the greatest shared factor; LCM is the smallest positive shared multiple.

  1. 1Factors of 12: 1, 2, 3, 4, 6, 12
  2. 2Factors of 18: 1, 2, 3, 6, 9, 18
  3. 3HCF = 6 · LCM = 36