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Find the greatest number that exactly divides 35, 91 and 840?

Correct answer: C. 7

  • A. 5
  • B. 6
  • C. 7
  • D. 8

Explanation

The greatest number that divides all three numbers exactly is their H.C.F. Since H.C.F.(35,91) = 7 and 840 is also divisible by 7, the H.C.F. of all three is 7. The likely wrong choice is 5, which divides 35 and 840 but does not divide 91.

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