Least Common Multiple (LCM) of 91 and 121
The least common multiple (LCM) of 91 and 121 is 11011.
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 121?
First, calculate the GCD of 91 and 121 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 91 ÷ 121 = 0 remainder 91 |
| 2 | 121 ÷ 91 = 1 remainder 30 |
| 3 | 91 ÷ 30 = 3 remainder 1 |
| 4 | 30 ÷ 1 = 30 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 129 and 143 | 18447 |
| 20 and 121 | 2420 |
| 96 and 155 | 14880 |
| 175 and 65 | 2275 |
| 161 and 140 | 3220 |