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 |
|---|---|
| 25 and 90 | 450 |
| 159 and 157 | 24963 |
| 102 and 150 | 2550 |
| 137 and 164 | 22468 |
| 79 and 81 | 6399 |