Multiple choice

Which of the following is the highest common factor of 2346 and 6435?

  1. 2

  2. 3

  3. 5

  4. 9
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Prime factorisation of 2346 = 2 × 3 × 391 Prime factorisation of 6435 = 3 × 3 × 5 × 11 × 13 HCF = 3

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