LCM( 190, 46, 38 ) = 4370
Step 1 : Write the given numbers in a horizontal line.
190 | 46 | 38 |
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 | 190 | 46 | 38 |
95 | 23 | 19 |
Step 3 : Continue dividing by prime numbers till we get 1 in all columns.
2 | 190 | 46 | 38 |
5 | 95 | 23 | 19 |
19 | 19 | 23 | 19 |
23 | 1 | 23 | 1 |
1 | 1 | 1 |
Step 4 : Multiply numbers in first column to get LCM.
LCM( 190, 46, 38 ) = 2 · 5 · 19 · 23 = 4370 .
This solution can be visualized using a Venn diagram.
The LCM is equal to the product of all the numbers on the diagram.