Question

find lcm .......................​

Answer 1

List all prime factors for each number.

Prime Factorization of 12 is:

2 x 2 x 3  =>  2^2 x 3^1

Prime Factorization of 15 is:

3 x 5  =>  3^1 x 5^1

Prime Factorization of 45 is:

3 x 3 x 5  =>  3^2 x 5^1

For each prime factor, find where it occurs most often as a factor and write it that many times in a new list.

The new superset list is

2, 2, 3, 3, 5

Multiply these factors together to find the LCM.

LCM = 2 x 2 x 3 x 3 x 5 = 180

In exponential form:

LCM = 22 x 32 x 51 = 180

LCM = 180

Therefore,

LCM(12, 15, 45) = 180

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Answer 2

hey your answer is :-

.

LCM Of 12 , 15 , 45....

3 l12, 15 , 45

_¦_________

5 l4 , 5 , 15

_¦________

¦ 4 , 1 , 3

LCM = 3 * 5 * 4 * 1* 3 = 180.....