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 |
|---|---|
| 149 and 51 | 7599 |
| 182 and 111 | 20202 |
| 194 and 187 | 36278 |
| 108 and 130 | 7020 |
| 58 and 141 | 8178 |