find the LCM by prime factorisation method the number is 64,80,100
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LCM of 64 , 80 , 100 is 1600
Given :
The numbers 64 , 80 , 100
To find :
LCM by prime factorisation
Concept :
LCM :
For the given two or more numbers LCM is the least number which is exactly divisible by each of the given numbers
Solution :
Step 1 of 3 :
Write down the given numbers
The given numbers are 64 , 80 , 100
Step 2 of 3 :
Prime factorise the given numbers
64 = 2 × 2 × 2 × 2 × 2 × 2
80 = 2 × 2 × 2 × 2 × 5
100 = 2 × 2 × 5 × 5
Step 3 of 3 :
Find LCM
The required LCM
= 2 × 2 × 2 × 2 × 2 × 2 × 5 × 5
= 1600
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