Least Common Multiple (LCM) of 121 and 131
The least common multiple (LCM) of 121 and 131 is 15851.
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 131?
First, calculate the GCD of 121 and 131 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 121 ÷ 131 = 0 remainder 121 |
| 2 | 131 ÷ 121 = 1 remainder 10 |
| 3 | 121 ÷ 10 = 12 remainder 1 |
| 4 | 10 ÷ 1 = 10 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 121 and 173 | 20933 |
| 79 and 18 | 1422 |
| 15 and 145 | 435 |
| 160 and 24 | 480 |
| 119 and 125 | 14875 |