Question

LCM of the following number by division method 20 , 60 ,80​

Answer 1

Answer:

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Step-by-step explanation:

Answer 2

Answer:

Step-by-step explanation:

Least Common Multiple is :

     240

Calculate Least Common Multiple for :

   20, 60 and 80

Factorize of the above numbers :

   20 = 22 • 5  

   60 = 22 • 3 • 5  

   80 = 24 • 5  

Build a prime factors table

   Number of times each prime factor

   appears in the factorization of :

Prime  

Factor   Number  

20   Number  

60   Number  

80    L.C.M  

(max)  

2 2 2 4 4

3 0 1 0 1

5 1 1 1 1

LCM = 24 • 3 • 5

Least Common Multiple is : 240