Least Common Multiple (LCM) of 71 and 185
The least common multiple (LCM) of 71 and 185 is 13135.
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 185?
First, calculate the GCD of 71 and 185 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 71 ÷ 185 = 0 remainder 71 |
| 2 | 185 ÷ 71 = 2 remainder 43 |
| 3 | 71 ÷ 43 = 1 remainder 28 |
| 4 | 43 ÷ 28 = 1 remainder 15 |
| 5 | 28 ÷ 15 = 1 remainder 13 |
| 6 | 15 ÷ 13 = 1 remainder 2 |
| 7 | 13 ÷ 2 = 6 remainder 1 |
| 8 | 2 ÷ 1 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 179 and 127 | 22733 |
| 192 and 68 | 3264 |
| 21 and 197 | 4137 |
| 45 and 123 | 1845 |
| 181 and 41 | 7421 |