Find the H.C.F of a, b, c and d, If

If a = 3129 x 5128 x 722
b = 3128 x 5129 x 721
c = 3127 x 5129 x 723 and
d = 3127 x 5128 x 724, then

  1. 3128 x 5129 x 721
  2. 3127 x 5128 x 721
  3. 3127 x 5128 x 722
  4. 3128 x 5128 x 721
Monis Rasool Professor Asked on 20th September 2015 in Maths.
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  • 1 Answer(s)

    Answer: (2) 3127 x 5128 x 721.

    Explanation:-
    A = 3129 x 5128 x 722 = 3127 x 32 x 5128 x 721 x 71
    B = 3128 x 5129 x 721 = 3127 x 31 x 5128x 51 x 721
    C = 3127 x 5129 x 723 = 3127 x 5128 x 51 x 721 x 72
    D = 3127 x 5128 x =724 = 3127 x 5128 x 721 x 73

    Then, the H. C. F. of A, B, C and D = 3127 x 5128 x 721.

    Hence, the answer is (2) 3127 x 5128 x 721.

    Anurag Mishra Professor Answered on 20th September 2015.
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