Least Common Multiple (LCM) of 138 and 194
The least common multiple (LCM) of 138 and 194 is 13386.
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 138 and 194?
First, calculate the GCD of 138 and 194 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 138 ÷ 194 = 0 remainder 138 |
| 2 | 194 ÷ 138 = 1 remainder 56 |
| 3 | 138 ÷ 56 = 2 remainder 26 |
| 4 | 56 ÷ 26 = 2 remainder 4 |
| 5 | 26 ÷ 4 = 6 remainder 2 |
| 6 | 4 ÷ 2 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 122 and 180 | 10980 |
| 178 and 146 | 12994 |
| 28 and 25 | 700 |
| 147 and 162 | 7938 |
| 36 and 24 | 72 |