Find Least Common Multiple of 11, 59 and 4 using prime factorisation method.
Answer
LCM( 11, 59, 4 ) = 2596
Explanation
Step 1: Write down factorisation of each number:
11 = 11
59 = 59
4 = 2 · 2
Step 2 : Match primes vertically:
| 11 | = | 11 | ||||||
| 59 | = | 59 | ||||||
| 4 | = | 2 | · | 2 |
Step 3 : Bring down numbers in each column and multiply to get LCM:
| 11 | = | 11 | ||||||||
| 59 | = | 59 | ||||||||
| 4 | = | 2 | · | 2 | ||||||
| LCM | = | 2 | · | 2 | · | 11 | · | 59 | = | 2596 |
This solution can be visualized using a Venn diagram.
The LCM is equal to the product of all the numbers on the diagram.
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