Least Common Multiple (LCM) of 77 and 173
The least common multiple (LCM) of 77 and 173 is 13321.
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 77 and 173?
First, calculate the GCD of 77 and 173 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 77 ÷ 173 = 0 remainder 77 |
| 2 | 173 ÷ 77 = 2 remainder 19 |
| 3 | 77 ÷ 19 = 4 remainder 1 |
| 4 | 19 ÷ 1 = 19 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 91 and 173 | 15743 |
| 161 and 85 | 13685 |
| 84 and 28 | 84 |
| 138 and 192 | 4416 |
| 150 and 131 | 19650 |