Least Common Multiple (LCM) of 138 and 60
The least common multiple (LCM) of 138 and 60 is 1380.
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 60?
First, calculate the GCD of 138 and 60 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 138 ÷ 60 = 2 remainder 18 |
| 2 | 60 ÷ 18 = 3 remainder 6 |
| 3 | 18 ÷ 6 = 3 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 38 and 16 | 304 |
| 72 and 29 | 2088 |
| 117 and 27 | 351 |
| 130 and 144 | 9360 |
| 106 and 120 | 6360 |