Method-1 : Finding LCM of 25,45 using Division Method
Step-1: Divide the numbers by prime factors until the remainder is 1

3	25		45
3	25		15
5	25		5
5	5		1
	1		1

Step-2: Multiply all the divisors to obtain the LCM

LCM of `25,45=3 xx 3 xx 5 xx 5=225`

---

Method-2 : Finding LCM of 25,45 using Prime Factorization Method
Step-1: Prime factorization of `25,45` using factor by division method

5 25 5 5   1

3 45 3 15 5 5   1

Step-2: Write each number as a product of primes, matching primes vertically when possible

25	=			5	× 5
45	=	3	× 3	× 5

Step-3: Bring down the primes in each column. The LCM is the product of these factors

25	=			5	× 5
45	=	3	× 3	× 5
LCM	=	3	× 3	× 5	× 5	= 225

`:.` LCM of `25,45` is `225`