Least Common Multiple (LCM) of 80 and 155
The least common multiple (LCM) of 80 and 155 is 2480.
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 155?
First, calculate the GCD of 80 and 155 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 80 ÷ 155 = 0 remainder 80 |
| 2 | 155 ÷ 80 = 1 remainder 75 |
| 3 | 80 ÷ 75 = 1 remainder 5 |
| 4 | 75 ÷ 5 = 15 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 85 and 18 | 1530 |
| 134 and 157 | 21038 |
| 162 and 112 | 9072 |
| 145 and 82 | 11890 |
| 194 and 111 | 21534 |