Least Common Multiple (LCM) of 161 and 80
The least common multiple (LCM) of 161 and 80 is 12880.
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 161 and 80?
First, calculate the GCD of 161 and 80 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 161 ÷ 80 = 2 remainder 1 |
| 2 | 80 ÷ 1 = 80 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 140 and 22 | 1540 |
| 138 and 180 | 4140 |
| 48 and 80 | 240 |
| 111 and 112 | 12432 |
| 127 and 27 | 3429 |