Least Common Multiple (LCM) of 139 and 81
The least common multiple (LCM) of 139 and 81 is 11259.
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 139 and 81?
First, calculate the GCD of 139 and 81 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 139 ÷ 81 = 1 remainder 58 |
| 2 | 81 ÷ 58 = 1 remainder 23 |
| 3 | 58 ÷ 23 = 2 remainder 12 |
| 4 | 23 ÷ 12 = 1 remainder 11 |
| 5 | 12 ÷ 11 = 1 remainder 1 |
| 6 | 11 ÷ 1 = 11 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 193 and 139 | 26827 |
| 107 and 10 | 1070 |
| 162 and 166 | 13446 |
| 152 and 138 | 10488 |
| 15 and 185 | 555 |