Question

Find the lcm bythe common division method 25 45 30

Answer 1

Answer:

Least Common Multiple is :

450

Calculate Least Common Multiple for :

25, 30 and 45

Factorize of the above numbers :

25 = 52

30 = 2 • 3 • 5

45 = 32 • 5

Build a prime factors table

Number of times each prime factor

appears in the factorization of :

Prime

Factor Number

25 Number

30 Number

45 L.C.M

(max)

2 0 1 0 1

3 0 1 2 2

5 2 1 1 2

LCM = 2 • 32 • 52

Least Common Multiple is :

450