LEARN MATH STEP BY STEP THROUGH VERY EASY PROCESS

FINDING LCM BY DIVISION METHOD

**Method of Finding the
LCM ****by**** Division Method**

**Divide the numbers by
prime numbers which is a common factor of at least two of the given numbers,
write the dividend and carry forward the numbers which are not divisible,
next we should have repeat all the steps till no two of the numbers has a
common factor. The product of the divisors of all the steps and the remaining
numbers is the LCM of the numbers.**

__Example.1
–__

**Find
the LCM of 72, 81 & 108**

**Ans.) **

**3 is a common factor
of 9 & 12, 8 is carried forward.**

**here is no common
factors**

**So, the LCM is
= 3 X 3 X 3 X 4 X 2 X 3 X 1 = 648**