H.C.F. & L.C.M. of Numbers

H.C.F. & L.C.M. of Numbers Worksheet-1

1. 252 can be expressed as a product of primes as :

(a) 2 × 2 × 3 × 3 × 7                    (b) 2 × 2 × 2 × 3 × 7

(c) 3 × 3 × 3 × 3 × 7                    (d) 2 × 3 × 3 × 3 × 7

2. Which of the following has most number of divisors?

(a) 99                  (b) 101                (c) 176                (d) 182

H.C.F. & L.C.M. of Numbers Worksheet-2

1. The L.C.M. of 22, 54, 108, 135 and 198 is :

(a) 330               (b) 1980             (c) 5940             (d) 11880

H.C.F. & L.C.M. of Numbers Worksheet-3

1. The H.C.F. of two numbers is 12 and their difference is 12. The numbers are :

(a) 66, 78           (b) 70, 82          (c) 94, 106         (d) 84, 96

2. The product of two numbers is 4107. If the H.C.F. of these numbers is 37, then the greater number is :

(a) 101                (b) 107                (c) 111                 (d) 185