Least Common Multiple (LCM) of 54 and 45
The least common multiple (LCM) of 54 and 45 is 270.
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 45?
First, calculate the GCD of 54 and 45 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 54 ÷ 45 = 1 remainder 9 |
| 2 | 45 ÷ 9 = 5 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 81 and 149 | 12069 |
| 91 and 67 | 6097 |
| 170 and 196 | 16660 |
| 127 and 114 | 14478 |
| 155 and 196 | 30380 |