Least Common Multiple (LCM) of 38 and 122
The least common multiple (LCM) of 38 and 122 is 2318.
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 122?
First, calculate the GCD of 38 and 122 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 38 ÷ 122 = 0 remainder 38 |
| 2 | 122 ÷ 38 = 3 remainder 8 |
| 3 | 38 ÷ 8 = 4 remainder 6 |
| 4 | 8 ÷ 6 = 1 remainder 2 |
| 5 | 6 ÷ 2 = 3 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 155 and 11 | 1705 |
| 18 and 25 | 450 |
| 161 and 193 | 31073 |
| 108 and 149 | 16092 |
| 190 and 43 | 8170 |