Least Common Multiple (LCM) of 121 and 69
The least common multiple (LCM) of 121 and 69 is 8349.
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 69?
First, calculate the GCD of 121 and 69 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 121 ÷ 69 = 1 remainder 52 |
| 2 | 69 ÷ 52 = 1 remainder 17 |
| 3 | 52 ÷ 17 = 3 remainder 1 |
| 4 | 17 ÷ 1 = 17 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 78 and 58 | 2262 |
| 123 and 90 | 3690 |
| 55 and 63 | 3465 |
| 14 and 44 | 308 |
| 197 and 28 | 5516 |