Multiple choice

Highest common factor of 90 and 225 is

  1. 45

  2. 55

  3. 75

  4. 65
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Factors of 90 = 2 x 3 x 3 x 5 Factors of 225 = 5 x 5 x 3 x 3   H.C.F of 90 and 225 = 3 x 5 x 3 = 45

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