Least Common Multiple (LCM) of 12 and 171
The least common multiple (LCM) of 12 and 171 is 684.
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 12 and 171?
First, calculate the GCD of 12 and 171 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 12 ÷ 171 = 0 remainder 12 |
| 2 | 171 ÷ 12 = 14 remainder 3 |
| 3 | 12 ÷ 3 = 4 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 195 and 84 | 5460 |
| 81 and 189 | 567 |
| 193 and 137 | 26441 |
| 18 and 105 | 630 |
| 44 and 57 | 2508 |