Multiple choice

Which of the following is the highest common factor of 2527 and 18228?

  1. 7

  2. 9

  3. 18

  4. 27
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Prime factorisation of 2527 = 7 × 19 × 19 Prime factorisation of 18228 = 2 × 2 × 3 × 7 × 7 × 31 HCF of 2527 and 18228 = 7

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