LCM( 7, 28, 63 ) = 252
Step 1 : Place the numbers inside division bar:
7 | 28 | 63 |
Step 2 : Find a prime number which can divide at least two of your numbers.
In this example we can divide by 7. If any number is not divisible by 7 write it down unchanged.
7 | 7 | 28 | 63 |
1 | 4 | 9 |
Step 4 : LCM is a product of numbers into L shape.
7 | 7 | 28 | 63 |
1 | 4 | 9 |
LCM = 7 · 1 · 4 · 9 = 252
This solution can be visualized using a Venn diagram.
The LCM is equal to the product of all the numbers on the diagram.