Least Common Multiple (LCM) of 125 and 161
The least common multiple (LCM) of 125 and 161 is 20125.
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 125 and 161?
First, calculate the GCD of 125 and 161 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 125 ÷ 161 = 0 remainder 125 |
| 2 | 161 ÷ 125 = 1 remainder 36 |
| 3 | 125 ÷ 36 = 3 remainder 17 |
| 4 | 36 ÷ 17 = 2 remainder 2 |
| 5 | 17 ÷ 2 = 8 remainder 1 |
| 6 | 2 ÷ 1 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 47 and 95 | 4465 |
| 60 and 66 | 660 |
| 189 and 155 | 29295 |
| 105 and 76 | 7980 |
| 122 and 111 | 13542 |