Least Common Multiple (LCM) of 61 and 163
The least common multiple (LCM) of 61 and 163 is 9943.
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 61 and 163?
First, calculate the GCD of 61 and 163 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 61 ÷ 163 = 0 remainder 61 |
| 2 | 163 ÷ 61 = 2 remainder 41 |
| 3 | 61 ÷ 41 = 1 remainder 20 |
| 4 | 41 ÷ 20 = 2 remainder 1 |
| 5 | 20 ÷ 1 = 20 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 20 and 59 | 1180 |
| 167 and 110 | 18370 |
| 144 and 160 | 1440 |
| 108 and 92 | 2484 |
| 31 and 87 | 2697 |