Question

Find LCM of
a) 15 , 24 , 32 b) 16, 24,36
( step by step explaination needed)​

Answer 1

Answer: a) 480 , b) 144

LCM= LEAST COMMON MULTIPLE

Step-by-step explanation: a) first we need to do the L method, then we need to take 2 because we should take the smallest prime number you can take and 15 does not come in 2 table so leave it as it is then take 32 and 24  

32 comes 16 times in 2 table and 24 comes 12 times in 2 table. then we get as 15, 12, 16 again take 2 and 12 comes 6 times in 2 table and 16 comes 8 times. we get as 15,6,8, then take 2  and 6 comes 3 times in 2 table and 8 comes 4 times in 2 table, then we gat as 15,3,4. then take 2 and 4 comes 2 times in 2 table, then again take 2 and 2 comes 1 times in 2 table. we get as 15,3,1. Take 3 and 3 comes 1 times in 3 table and 15 comes 5 times in 3 table and lastly take 5 and 5 comes 1 times in 5 table and we get as 1,1,1. After we get 1 only everything then thats all.

Last step: we have to multipy all the numbers we used in side that is 2,2,2,2,2,3,5. 2x2x2x2x2x3x5 = 480

That same way you have to do the (b) and remember always you should use only prime numbers for side !!!

hope it helped you

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