Least Common Multiple (LCM) of 91 and 80
The least common multiple (LCM) of 91 and 80 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 91 and 80?
First, calculate the GCD of 91 and 80 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 91 ÷ 80 = 1 remainder 11 |
| 2 | 80 ÷ 11 = 7 remainder 3 |
| 3 | 11 ÷ 3 = 3 remainder 2 |
| 4 | 3 ÷ 2 = 1 remainder 1 |
| 5 | 2 ÷ 1 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 159 and 52 | 8268 |
| 110 and 44 | 220 |
| 118 and 162 | 9558 |
| 129 and 129 | 129 |
| 92 and 113 | 10396 |