LCM( 47, 55 ) = 2585
Step 1: Write down factorisation of each number:
47 = 47
55 = 5 · 11
Step 2 : Match primes vertically:
47 | = | 47 | ||||
55 | = | 5 | · | 11 |
Step 3 : Bring down numbers in each column and multiply to get LCM:
47 | = | 47 | ||||||
55 | = | 5 | · | 11 | ||||
LCM | = | 5 | · | 11 | · | 47 | = | 2585 |
This solution can be visualized using a Venn diagram.
The LCM is equal to the product of all the numbers on the diagram.