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REAL NUMBERS · WORKSHEET 01
Factors & Multiples
Build complete confidence with natural, whole, integer, rational, irrational, prime, composite, even, odd, square and cube numbers.
20–25 minutes
Work carefully rather than rushing.
Instant marking
Use hints and explanations when needed.
You will practise
FactorsMultiplesPrime numbersComposite numbersFactor pairsCommon factorsCommon multiplesPrime factorisation
StudyNest convention: natural numbers begin at 1. Whole numbers include 0.
GETTING STARTED
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Number families
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Common mistakes to remember
- A factor divides a number exactly; a multiple is produced by multiplying.
- 1 is neither prime nor composite.
- Prime factorisation must contain prime factors only.
- Common factors divide both numbers; common multiples are divisible by both numbers.
- When counting factors from prime powers, add 1 to each exponent and multiply.