Least Common Multiple (LCM) of 171 and 65
The least common multiple (LCM) of 171 and 65 is 11115.
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 65?
First, calculate the GCD of 171 and 65 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 171 ÷ 65 = 2 remainder 41 |
| 2 | 65 ÷ 41 = 1 remainder 24 |
| 3 | 41 ÷ 24 = 1 remainder 17 |
| 4 | 24 ÷ 17 = 1 remainder 7 |
| 5 | 17 ÷ 7 = 2 remainder 3 |
| 6 | 7 ÷ 3 = 2 remainder 1 |
| 7 | 3 ÷ 1 = 3 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 39 and 56 | 2184 |
| 198 and 18 | 198 |
| 114 and 144 | 2736 |
| 163 and 157 | 25591 |
| 123 and 140 | 17220 |