Least Common Multiple (LCM) of 91 and 108
The least common multiple (LCM) of 91 and 108 is 9828.
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 108?
First, calculate the GCD of 91 and 108 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 91 ÷ 108 = 0 remainder 91 |
| 2 | 108 ÷ 91 = 1 remainder 17 |
| 3 | 91 ÷ 17 = 5 remainder 6 |
| 4 | 17 ÷ 6 = 2 remainder 5 |
| 5 | 6 ÷ 5 = 1 remainder 1 |
| 6 | 5 ÷ 1 = 5 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 65 and 21 | 1365 |
| 139 and 69 | 9591 |
| 139 and 87 | 12093 |
| 25 and 33 | 825 |
| 176 and 109 | 19184 |