Least Common Multiple (LCM) of 71 and 165
The least common multiple (LCM) of 71 and 165 is 11715.
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 71 and 165?
First, calculate the GCD of 71 and 165 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 71 ÷ 165 = 0 remainder 71 |
| 2 | 165 ÷ 71 = 2 remainder 23 |
| 3 | 71 ÷ 23 = 3 remainder 2 |
| 4 | 23 ÷ 2 = 11 remainder 1 |
| 5 | 2 ÷ 1 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 77 and 137 | 10549 |
| 120 and 97 | 11640 |
| 31 and 42 | 1302 |
| 121 and 29 | 3509 |
| 165 and 197 | 32505 |