Least Common Multiple (LCM) of 124 and 173
The least common multiple (LCM) of 124 and 173 is 21452.
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 124 and 173?
First, calculate the GCD of 124 and 173 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 124 ÷ 173 = 0 remainder 124 |
| 2 | 173 ÷ 124 = 1 remainder 49 |
| 3 | 124 ÷ 49 = 2 remainder 26 |
| 4 | 49 ÷ 26 = 1 remainder 23 |
| 5 | 26 ÷ 23 = 1 remainder 3 |
| 6 | 23 ÷ 3 = 7 remainder 2 |
| 7 | 3 ÷ 2 = 1 remainder 1 |
| 8 | 2 ÷ 1 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 85 and 128 | 10880 |
| 123 and 161 | 19803 |
| 171 and 111 | 6327 |
| 54 and 151 | 8154 |
| 77 and 57 | 4389 |