Question

find HCF and LCM 1) 72,60,90​

Answer 1

Answer:

 

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Alternative approach

Step by Step Solution

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Least Common Multiple is :

     360

Calculate Least Common Multiple for :

   60, 72 and 90

Factorize of the above numbers :

   60 = 22 • 3 • 5  

   72 = 23 • 32  

   90 = 2 • 32 • 5  

Build a prime factors table

   Number of times each prime factor

   appears in the factorization of :

Prime  

Factor   Number  

60   Number  

72   Number  

90    L.C.M  

(max)  

2 2 3 1 3

3 1 2 2 2

5 1 0 1 1

LCM = 23 • 32 • 5

Least Common Multiple is :

     360

Step-by-step explanation:

Answer 2

Answer:

The HCF is 9 and LCM is 360