Question

How to find lcm of three numbers by prime factorization?

Answer 1

Step-by-step explanation:

For example the three numbers can be 6, 12 and 18

1) First factorise all the numbers

6= 2x3

12= 2x2x3

18= 2x3x3

2) Take all the common number to 5he greater times. As 2 is common the grater number of times we take 2x2 and 3x3.

3) Multiply all the numbers.

2x2x3x3= 36

ANS: The LCM of 6, 12 and 18 is 36.