Least Common Multiple (LCM) of 80 and 170
The least common multiple (LCM) of 80 and 170 is 1360.
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 80 and 170?
First, calculate the GCD of 80 and 170 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 80 ÷ 170 = 0 remainder 80 |
| 2 | 170 ÷ 80 = 2 remainder 10 |
| 3 | 80 ÷ 10 = 8 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 38 and 155 | 5890 |
| 63 and 40 | 2520 |
| 52 and 98 | 2548 |
| 177 and 101 | 17877 |
| 123 and 117 | 4797 |