Least Common Multiple (LCM) of 123 and 86
The least common multiple (LCM) of 123 and 86 is 10578.
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 123 and 86?
First, calculate the GCD of 123 and 86 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 123 ÷ 86 = 1 remainder 37 |
| 2 | 86 ÷ 37 = 2 remainder 12 |
| 3 | 37 ÷ 12 = 3 remainder 1 |
| 4 | 12 ÷ 1 = 12 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 25 and 82 | 2050 |
| 72 and 115 | 8280 |
| 123 and 90 | 3690 |
| 170 and 143 | 24310 |
| 97 and 20 | 1940 |