Least Common Multiple (LCM) of 71 and 191
The least common multiple (LCM) of 71 and 191 is 13561.
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 191?
First, calculate the GCD of 71 and 191 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 71 ÷ 191 = 0 remainder 71 |
| 2 | 191 ÷ 71 = 2 remainder 49 |
| 3 | 71 ÷ 49 = 1 remainder 22 |
| 4 | 49 ÷ 22 = 2 remainder 5 |
| 5 | 22 ÷ 5 = 4 remainder 2 |
| 6 | 5 ÷ 2 = 2 remainder 1 |
| 7 | 2 ÷ 1 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 43 and 110 | 4730 |
| 124 and 115 | 14260 |
| 122 and 85 | 10370 |
| 17 and 168 | 2856 |
| 166 and 182 | 15106 |