Least Common Multiple (LCM) of 121 and 109
The least common multiple (LCM) of 121 and 109 is 13189.
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 121 and 109?
First, calculate the GCD of 121 and 109 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 121 ÷ 109 = 1 remainder 12 |
| 2 | 109 ÷ 12 = 9 remainder 1 |
| 3 | 12 ÷ 1 = 12 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 195 and 136 | 26520 |
| 32 and 82 | 1312 |
| 12 and 160 | 480 |
| 123 and 69 | 2829 |
| 121 and 178 | 21538 |