Least Common Multiple (LCM) of 55 and 80
The least common multiple (LCM) of 55 and 80 is 880.
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 55 and 80?
First, calculate the GCD of 55 and 80 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 55 ÷ 80 = 0 remainder 55 |
| 2 | 80 ÷ 55 = 1 remainder 25 |
| 3 | 55 ÷ 25 = 2 remainder 5 |
| 4 | 25 ÷ 5 = 5 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 80 and 114 | 4560 |
| 97 and 27 | 2619 |
| 22 and 97 | 2134 |
| 161 and 32 | 5152 |
| 63 and 109 | 6867 |