Using common multiple method, find the L.C.M of 36,48,72 and 90.
Finding the mutiple of 36,48,72 and 90.
Multiples of 36=36,72,108,144,180,216,252,288,324,360,396,432,468,504,540,576,612,648,684,720,756,792,828,864,900,936,972,1008,1044,1080,1116,1152,1188,1224,1260,1296,1332,1368,1404,1440,......
Multiples of 48=48,96,144,192,240,288,336,384,432,480,528,576,624,672,720,768,816,864,912,960,1008,1056,1104,1152,1200,1248,1296,1344,1392,1440,......
Multiples of 72=72,144,216,288,360,432,504,576,648,720,792,864,936,1008,1080,1152,1224,1296,1368,1440,.....
Multiples of 90=90,180,270,360,450,540,630,720,810,900,990,1080,1170,1260,1350,1440,....
Finding the the L.C.M of 36,48,72 and 90.
Common multiples of 36,48,72 and 90=720,1440,...
L.C.M. (Lowest common multiple) of 36,48,72 and 90=720.
Hence, the L.C.M of 36,48,72 and 90 is 720.
Find the LCM of 4,6 and 8 using common multiple method.
Using prime factorisation method find the HCF and LCM of: (i) 144, 198 (ii) 24, 36, 40 (iii) 30, 72, 432
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