Least Common Multiple (LCM) of 18 and 86
The least common multiple (LCM) of 18 and 86 is 774.
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 86?
First, calculate the GCD of 18 and 86 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 18 ÷ 86 = 0 remainder 18 |
| 2 | 86 ÷ 18 = 4 remainder 14 |
| 3 | 18 ÷ 14 = 1 remainder 4 |
| 4 | 14 ÷ 4 = 3 remainder 2 |
| 5 | 4 ÷ 2 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 62 and 10 | 310 |
| 45 and 60 | 180 |
| 46 and 190 | 4370 |
| 120 and 68 | 2040 |
| 114 and 16 | 912 |