Least Common Multiple (LCM) of 18 and 108
The least common multiple (LCM) of 18 and 108 is 108.
What is the Least Common Multiple (LCM)?
The LCM of two integers is the smallest positive integer that is divisible by both numbers. It is often used to find common denominators and solve problems involving periodic events.
Formula for LCM
The LCM of two numbers can be calculated using their GCD:
LCM(a, b) = |a × b| ÷ GCD(a, b)
How to Calculate the LCM of 18 and 108?
First, calculate the GCD of 18 and 108 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 18 ÷ 108 = 0 remainder 18 |
| 2 | 108 ÷ 18 = 6 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 130 and 83 | 10790 |
| 19 and 20 | 380 |
| 10 and 164 | 820 |
| 76 and 86 | 3268 |
| 148 and 170 | 12580 |