Math Calculators, Lessons and Formulas

It is time to solve your math problem

mathportal.org

back to index

Find Least Common Multiple of 32, 64, 160 and 130 using prime factorisation method.

Answer

LCM( 32, 64, 160, 130 ) = 4160

Explanation

Step 1: Write down factorisation of each number:

32 = 2 · 2 · 2 · 2 · 2

64 = 2 · 2 · 2 · 2 · 2 · 2

160 = 2 · 2 · 2 · 2 · 2 · 5

130 = 2 · 5 · 13

Step 2 : Match primes vertically:

32=2·2·2·2·2      
64=2·2·2·2·2·2    
160=2·2·2·2·2·  5  
130=2·          5·13

Step 3 : Bring down numbers in each column and multiply to get LCM:

32=2·2·2·2·2        
64=2·2·2·2·2·2      
160=2·2·2·2·2·  5    
130=2·          5·13  
LCM=2·2·2·2·2·2·5·13=4160
This page was created using
LCM Calculator