Least Common Multiple (LCM) of 80 and 91
The least common multiple (LCM) of 80 and 91 is 7280.
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 91?
First, calculate the GCD of 80 and 91 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 80 ÷ 91 = 0 remainder 80 |
| 2 | 91 ÷ 80 = 1 remainder 11 |
| 3 | 80 ÷ 11 = 7 remainder 3 |
| 4 | 11 ÷ 3 = 3 remainder 2 |
| 5 | 3 ÷ 2 = 1 remainder 1 |
| 6 | 2 ÷ 1 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 164 and 95 | 15580 |
| 189 and 183 | 11529 |
| 119 and 50 | 5950 |
| 138 and 71 | 9798 |
| 194 and 164 | 15908 |