LCM( 60, 70, 80, 96 ) = 3360
Step 1 : Write the given numbers in a horizontal line.
60 | 70 | 80 | 96 |
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 | 60 | 70 | 80 | 96 |
30 | 35 | 40 | 48 |
Step 3 : Continue dividing by prime numbers till we get 1 in all columns.
2 | 60 | 70 | 80 | 96 |
2 | 30 | 35 | 40 | 48 |
2 | 15 | 35 | 20 | 24 |
2 | 15 | 35 | 10 | 12 |
2 | 15 | 35 | 5 | 6 |
3 | 15 | 35 | 5 | 3 |
5 | 5 | 35 | 5 | 1 |
7 | 1 | 7 | 1 | 1 |
1 | 1 | 1 | 1 |
Step 4 : Multiply numbers in first column to get LCM.
LCM( 60, 70, 80, 96 ) = 2 · 2 · 2 · 2 · 2 · 3 · 5 · 7 = 3360 .