Least Common Multiple (LCM) of 171 and 180
The least common multiple (LCM) of 171 and 180 is 3420.
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 171 and 180?
First, calculate the GCD of 171 and 180 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 171 ÷ 180 = 0 remainder 171 |
| 2 | 180 ÷ 171 = 1 remainder 9 |
| 3 | 171 ÷ 9 = 19 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 159 and 122 | 19398 |
| 182 and 12 | 1092 |
| 39 and 84 | 1092 |
| 142 and 14 | 994 |
| 140 and 138 | 9660 |