Least Common Multiple (LCM) of 71 and 137
The least common multiple (LCM) of 71 and 137 is 9727.
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 137?
First, calculate the GCD of 71 and 137 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 71 ÷ 137 = 0 remainder 71 |
| 2 | 137 ÷ 71 = 1 remainder 66 |
| 3 | 71 ÷ 66 = 1 remainder 5 |
| 4 | 66 ÷ 5 = 13 remainder 1 |
| 5 | 5 ÷ 1 = 5 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 113 and 188 | 21244 |
| 120 and 196 | 5880 |
| 78 and 55 | 4290 |
| 156 and 72 | 936 |
| 90 and 140 | 1260 |