HCF & LCM

HCF and LCM Worksheet-1

1. What is the HCF of 34 and 102?

(a) 102                (b) 34                 (c) 17                   (d) 1

2. 'A' and 'B' tankers contain 840 litres and 420 litres of oil, respectively. What is the maximum capacity of a container which can measure the oil of both the tankers an exact number of times?

(a) 840 litres    (b) 20 litres       (c) 40 litres       (d) 420 litres

3. Which one of the following statements is correct?

(a) Every factor is less than or equal to the given numbers.

(b) Every factor is always less than the given numbers.

HCF and LCM Worksheet-2

1. Factors of 12 are ______.

(a) 1, 2, 3, 5, 7 and 12         (b) 1, 2, 3, 4 and 10

(c) 1, 2, 3, 5, 6 and 9          (d) 1, 2, 3, 4, 6 and 12

2. What is the CORRECT definition of Highest Common Factor (H.C.F) or the Greatest Common Divisor (G.C.D)?

(a) The lowest number that divides two or more numbers with remainder.

(b) The greatest number that divides two or more numbers without remainder.

(c) The greatest number that divides at least one of the numbers without remainder.

(d) The smallest number that divides two or more numbers without a remainder.

HCF and LCM Worksheet-3

1. What is the G.C.F of two consecutive even numbers?

(a) 2                    (b) 4                    (c) 1                     (d) 3

2. What is the largest devisor, which divides the numbers 220, 313 and 716, and leaves remainder 3 in each case?

(a) 12                  (b) 31                  (c) 10                  (d) 3