LCM( 216, 54, 13, 16 ) = 5616
Step 1 : Write the given numbers in a horizontal line.
216 | 54 | 13 | 16 |
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 | 216 | 54 | 13 | 16 |
108 | 27 | 13 | 8 |
Step 3 : Continue dividing by prime numbers till we get 1 in all columns.
2 | 216 | 54 | 13 | 16 |
2 | 108 | 27 | 13 | 8 |
2 | 54 | 27 | 13 | 4 |
2 | 27 | 27 | 13 | 2 |
3 | 27 | 27 | 13 | 1 |
3 | 9 | 9 | 13 | 1 |
3 | 3 | 3 | 13 | 1 |
13 | 1 | 1 | 13 | 1 |
1 | 1 | 1 | 1 |
Step 4 : Multiply numbers in first column to get LCM.
LCM( 216, 54, 13, 16 ) = 2 · 2 · 2 · 2 · 3 · 3 · 3 · 13 = 5616 .