Least Common Multiple (LCM) of 138 and 33
The least common multiple (LCM) of 138 and 33 is 1518.
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 33?
First, calculate the GCD of 138 and 33 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 138 ÷ 33 = 4 remainder 6 |
| 2 | 33 ÷ 6 = 5 remainder 3 |
| 3 | 6 ÷ 3 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 180 and 19 | 3420 |
| 30 and 122 | 1830 |
| 185 and 67 | 12395 |
| 180 and 71 | 12780 |
| 48 and 192 | 192 |