GCSE Maths (AQA)

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Prime Numbers

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Number Structure and Calculation

Prime Numbers

2:51 Prime Factors
Spec N4
Previous Factors & Multiples Next Prime Factorisation
  • A prime number is a number greater than one that only has two factors, one and itself.
  • Two is the only even prime number.
  • There are infinitely many prime numbers.
  • The number 1 is not a prime number.
  • The largest known prime number is over 24 million digits long.
  • To find prime numbers between a range, remove multiples of 2 and 5, then check the remaining numbers for factors other than one and themselves.

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