Least Common Multiple (LCM) of 54 and 189
The least common multiple (LCM) of 54 and 189 is 378.
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 54 and 189?
First, calculate the GCD of 54 and 189 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 54 ÷ 189 = 0 remainder 54 |
| 2 | 189 ÷ 54 = 3 remainder 27 |
| 3 | 54 ÷ 27 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 79 and 66 | 5214 |
| 57 and 13 | 741 |
| 172 and 121 | 20812 |
| 62 and 159 | 9858 |
| 52 and 134 | 3484 |