Least Common Multiple (LCM) of 91 and 43
The least common multiple (LCM) of 91 and 43 is 3913.
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 43?
First, calculate the GCD of 91 and 43 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 91 ÷ 43 = 2 remainder 5 |
| 2 | 43 ÷ 5 = 8 remainder 3 |
| 3 | 5 ÷ 3 = 1 remainder 2 |
| 4 | 3 ÷ 2 = 1 remainder 1 |
| 5 | 2 ÷ 1 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 194 and 198 | 19206 |
| 43 and 85 | 3655 |
| 157 and 134 | 21038 |
| 128 and 159 | 20352 |
| 145 and 102 | 14790 |