Question
Find Least Common Multiple of 1766 and 7415434 using division method..
Answer
LCM( 1766, 7415434 ) = 7415434
Explanation
Step 1 : Write the given numbers in a horizontal line.
| 1766 | 7415434 |
Step 2 : Divide the given numbers by smallest prime number. In this example we can divide by 2.
(if any number is not divisible by 2, write it down unchanged)
| 2 | 1766 | 7415434 |
| 883 | 3707717 |
Step 3 : Continue dividing by prime numbers till we get 1 in all columns.
| 2 | 1766 | 7415434 |
| 13 | 883 | 3707717 |
| 17 | 883 | 285209 |
| 19 | 883 | 16777 |
| 883 | 883 | 883 |
| 1 | 1 |
Step 4 : Multiply numbers in first column to get LCM.
LCM( 1766, 7415434 ) = 2 · 13 · 17 · 19 · 883 = 7415434 .
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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