Least Common Multiple (LCM) of 38 and 171
The least common multiple (LCM) of 38 and 171 is 342.
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 171?
First, calculate the GCD of 38 and 171 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 38 ÷ 171 = 0 remainder 38 |
| 2 | 171 ÷ 38 = 4 remainder 19 |
| 3 | 38 ÷ 19 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 181 and 101 | 18281 |
| 115 and 182 | 20930 |
| 161 and 198 | 31878 |
| 74 and 89 | 6586 |
| 139 and 99 | 13761 |