Least Common Multiple (LCM) of 38 and 86
The least common multiple (LCM) of 38 and 86 is 1634.
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 38 and 86?
First, calculate the GCD of 38 and 86 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 38 ÷ 86 = 0 remainder 38 |
| 2 | 86 ÷ 38 = 2 remainder 10 |
| 3 | 38 ÷ 10 = 3 remainder 8 |
| 4 | 10 ÷ 8 = 1 remainder 2 |
| 5 | 8 ÷ 2 = 4 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 172 and 33 | 5676 |
| 107 and 168 | 17976 |
| 55 and 81 | 4455 |
| 109 and 197 | 21473 |
| 199 and 25 | 4975 |