HCF & LCM

HCF and LCM Worksheet-4

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

(a) 2                    (b) 3                    (c) 9                    (d) 1

2. The two bags of sugar weight 75 kg and 90 kg. What is the maximum weight that can measure the weight of the two bags of sugar exact number of time?

(a) 15 kg             (b) 90 kg            (c) 100 kg          (d) 75 kg

3. Find the numbers whose G.C.F. is 18.

(a) 144, 198       (b) 132, 246      (c) 436, 244      (d) 260, 128

HCF and LCM Worksheet-5

1. What is the L.C.M. of 14, 18, 24 and 32?

(a) 1320             (b) 2420            (c) 2020             (d) 2016

2. Find the L.C.M. of 15 and 4.

(a) 20                 (b) 60                 (c) 40                  (d) 120

3. Which number will Jenna get as the L.C.M. of 72, 96 and 160?

(a) 1420             (b) 1460             (c) 1600             (d) 1440

HCF and LCM Worksheet-6

1. What is the smallest 3-digit number that is divisible by 18, 36 and 45?

(a) 160                (b) 360               (c) 140                (d) 180

2. Albert, Rohan and Robin step off together for their school. Their steps measure 60 cm, 75 cm and 90 cm respectively. What is the minimum distance each should walk so that all can cover that distance in complete steps?

(a) 100 cm         (b) 900 cm        (c) 600 cm        (d) 750 cm