Question

Find the LCM of the following numbers by
common division method:
(i) 18,36,60,72
​

Answer 1

Answer:

Do with 2

Step-by-step explanation:

The number 2 is lcm of this number

Answer 2

Answer:

LCM = 360

Step-by-step explanation:

Using common division method:

Keep dividing the numbers by prime factors 2/3/5 until you get 1 for all

2 | 18,36,60,72

2 | 9,18,30,36

2 | 9,9,15,18

3 | 9,9,15,9

3 | 3,3,5,3

5 | 1,1,5,1

  | 1,1,1,1

After you get the prime factors, just multiply all of them with each other to get the LCM :

2*2*2*3*3*5 = 360 = LCM

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