Factors and Primes

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Factors and Primes 

  • The factors of a number are whole numbers that divide exactly into the number. 
  • They always include 1 and the number itself. 

Prime Factors

If a number is a factor of another number AND it is a prime number, then it is called a prime factor. You use a factor tree to find prime factors.

Top Tip: Circle the prime factors as you go along.

54 = 2


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