Least Common Multiple (LCM) of 54 and 17
The least common multiple (LCM) of 54 and 17 is 918.
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 17?
First, calculate the GCD of 54 and 17 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 54 ÷ 17 = 3 remainder 3 |
| 2 | 17 ÷ 3 = 5 remainder 2 |
| 3 | 3 ÷ 2 = 1 remainder 1 |
| 4 | 2 ÷ 1 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 188 and 172 | 8084 |
| 153 and 196 | 29988 |
| 85 and 199 | 16915 |
| 112 and 133 | 2128 |
| 78 and 56 | 2184 |