Question
Find Least Common Multiple of 2, 4, 5 and 6 using ladder method..
Answer
LCM( 2, 4, 5, 6 ) = 60
Explanation
Step 1 : Place the numbers inside division bar:
| 2 | 4 | 5 | 6 |
Step 2 : Find a prime number which can divide at least two of your numbers.
In this example we can divide by 2. If any number is not divisible by 2 write it down unchanged.
| 2 | 2 | 4 | 5 | 6 |
| 1 | 2 | 5 | 3 |
Step 4 : LCM is a product of numbers into L shape.
| 2 | 2 | 4 | 5 | 6 |
| 1 | 2 | 5 | 3 |
LCM = 2 · 1 · 2 · 5 · 3 = 60
This page was created using
LCM Calculator