Least Common Multiple (LCM) of 123 and 103
The least common multiple (LCM) of 123 and 103 is 12669.
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 103?
First, calculate the GCD of 123 and 103 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 123 ÷ 103 = 1 remainder 20 |
| 2 | 103 ÷ 20 = 5 remainder 3 |
| 3 | 20 ÷ 3 = 6 remainder 2 |
| 4 | 3 ÷ 2 = 1 remainder 1 |
| 5 | 2 ÷ 1 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 181 and 109 | 19729 |
| 124 and 182 | 11284 |
| 144 and 184 | 3312 |
| 163 and 173 | 28199 |
| 51 and 31 | 1581 |