LCM( 250, 300, 175 ) = 10500
Step 1 : Write the given numbers in a horizontal line.
250 | 300 | 175 |
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 | 250 | 300 | 175 |
125 | 150 | 175 |
Step 3 : Continue dividing by prime numbers till we get 1 in all columns.
2 | 250 | 300 | 175 |
2 | 125 | 150 | 175 |
3 | 125 | 75 | 175 |
5 | 125 | 25 | 175 |
5 | 25 | 5 | 35 |
5 | 5 | 1 | 7 |
7 | 1 | 1 | 7 |
1 | 1 | 1 |
Step 4 : Multiply numbers in first column to get LCM.
LCM( 250, 300, 175 ) = 2 · 2 · 3 · 5 · 5 · 5 · 7 = 10500 .
This solution can be visualized using a Venn diagram.
The LCM is equal to the product of all the numbers on the diagram.