Find Least Common Multiple of 8 and 6 using prime factorisation method.
Answer
LCM( 8, 6 ) = 24
Explanation
Step 1: Write down factorisation of each number:
8 = 2 · 2 · 2
6 = 2 · 3
Step 2 : Match primes vertically:
| 8 | = | 2 | · | 2 | · | 2 | ||
| 6 | = | 2 | · | 3 |
Step 3 : Bring down numbers in each column and multiply to get LCM:
| 8 | = | 2 | · | 2 | · | 2 | ||||
| 6 | = | 2 | · | 3 | ||||||
| LCM | = | 2 | · | 2 | · | 2 | · | 3 | = | 24 |
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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