Least Common Multiple (LCM) of 139 and 123
The least common multiple (LCM) of 139 and 123 is 17097.
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 123?
First, calculate the GCD of 139 and 123 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 139 ÷ 123 = 1 remainder 16 |
| 2 | 123 ÷ 16 = 7 remainder 11 |
| 3 | 16 ÷ 11 = 1 remainder 5 |
| 4 | 11 ÷ 5 = 2 remainder 1 |
| 5 | 5 ÷ 1 = 5 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 39 and 199 | 7761 |
| 20 and 75 | 300 |
| 86 and 92 | 3956 |
| 145 and 73 | 10585 |
| 146 and 157 | 22922 |