Least Common Multiple (LCM) of 71 and 111
The least common multiple (LCM) of 71 and 111 is 7881.
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 111?
First, calculate the GCD of 71 and 111 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 71 ÷ 111 = 0 remainder 71 |
| 2 | 111 ÷ 71 = 1 remainder 40 |
| 3 | 71 ÷ 40 = 1 remainder 31 |
| 4 | 40 ÷ 31 = 1 remainder 9 |
| 5 | 31 ÷ 9 = 3 remainder 4 |
| 6 | 9 ÷ 4 = 2 remainder 1 |
| 7 | 4 ÷ 1 = 4 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 74 and 37 | 74 |
| 189 and 14 | 378 |
| 118 and 139 | 16402 |
| 192 and 171 | 10944 |
| 179 and 135 | 24165 |