LCM( 15, 20, 25 ) = 300
Step 1 : Place the numbers inside division bar:
15 | 20 | 25 |
Step 2 : Find a prime number which can divide at least two of your numbers.
In this example we can divide by 5. If any number is not divisible by 5 write it down unchanged.
5 | 15 | 20 | 25 |
3 | 4 | 5 |
Step 4 : LCM is a product of numbers into L shape.
5 | 15 | 20 | 25 |
3 | 4 | 5 |
LCM = 5 · 3 · 4 · 5 = 300
This solution can be visualized using a Venn diagram.
The LCM is equal to the product of all the numbers on the diagram.