LCM and HCF


  1. H.C.F . of 23, 32 and 15 is ?









  1. View Hint View Answer Discuss in Forum

    Clearly, 1 is the highest common factor of 23, 32, and 15.

    Correct Option: C

    Clearly, 1 is the highest common factor of 23, 32, and 15.


  1. H.C.F of 42, 63 and 140 is ?









  1. View Hint View Answer Discuss in Forum

    H.C.F. of 42 and 63 is 21.
    ∵ H.C.F of 21 and 140 is 7

    Correct Option: D

    H.C.F. of 42 and 63 is 21.
    ∵ H.C.F of 21 and 140 is 7

    ∴ H.C.F. of 42, 63 and 140 is 7



  1. H.C.F of 1/2, 2/3, 3/4, 4/5 is ?









  1. View Hint View Answer Discuss in Forum

    H.C.F = ( H.C.F of 1, 2, 3, 4) / (L.C.M of 2, 3, 4, 5)

    Correct Option: D

    H.C.F = ( H.C.F of 1, 2, 3, 4) / (L.C.M of 2, 3, 4, 5)
    = 1/60


  1. H.C.F. of 1485 and 4356 is ?









  1. View Hint View Answer Discuss in Forum

    H.C.F of 1485 and 4356 is 99

    Correct Option: C

    H.C.F of 1485 and 4356 is 99



  1. The largest number , which exactly divides 210, 315, 147 and 168 is ?









  1. View Hint View Answer Discuss in Forum

    The largest number is the H.C.F. of 210, 315, 147, and 168, which is 21.

    Correct Option: C

    The largest number is the H.C.F. of 210, 315, 147, and 168, which is 21.