Least Common Multiple (LCM) of 192 and 138
The least common multiple (LCM) of 192 and 138 is 4416.
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 192 and 138?
First, calculate the GCD of 192 and 138 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 192 ÷ 138 = 1 remainder 54 |
| 2 | 138 ÷ 54 = 2 remainder 30 |
| 3 | 54 ÷ 30 = 1 remainder 24 |
| 4 | 30 ÷ 24 = 1 remainder 6 |
| 5 | 24 ÷ 6 = 4 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 147 and 21 | 147 |
| 116 and 162 | 9396 |
| 170 and 40 | 680 |
| 143 and 13 | 143 |
| 90 and 33 | 990 |