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 |
|---|---|
| 123 and 60 | 2460 |
| 184 and 86 | 7912 |
| 150 and 30 | 150 |
| 102 and 75 | 2550 |
| 79 and 63 | 4977 |