Least Common Multiple (LCM) of 188 and 138
The least common multiple (LCM) of 188 and 138 is 12972.
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 188 and 138?
First, calculate the GCD of 188 and 138 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 188 ÷ 138 = 1 remainder 50 |
| 2 | 138 ÷ 50 = 2 remainder 38 |
| 3 | 50 ÷ 38 = 1 remainder 12 |
| 4 | 38 ÷ 12 = 3 remainder 2 |
| 5 | 12 ÷ 2 = 6 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 171 and 155 | 26505 |
| 57 and 49 | 2793 |
| 66 and 67 | 4422 |
| 80 and 165 | 2640 |
| 184 and 144 | 3312 |