Least Common Multiple (LCM) of 126 and 173
The least common multiple (LCM) of 126 and 173 is 21798.
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 126 and 173?
First, calculate the GCD of 126 and 173 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 126 ÷ 173 = 0 remainder 126 |
| 2 | 173 ÷ 126 = 1 remainder 47 |
| 3 | 126 ÷ 47 = 2 remainder 32 |
| 4 | 47 ÷ 32 = 1 remainder 15 |
| 5 | 32 ÷ 15 = 2 remainder 2 |
| 6 | 15 ÷ 2 = 7 remainder 1 |
| 7 | 2 ÷ 1 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 180 and 124 | 5580 |
| 42 and 154 | 462 |
| 79 and 110 | 8690 |
| 98 and 172 | 8428 |
| 40 and 81 | 3240 |