Least Common Multiple (LCM) of 31 and 163
The least common multiple (LCM) of 31 and 163 is 5053.
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 31 and 163?
First, calculate the GCD of 31 and 163 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 31 ÷ 163 = 0 remainder 31 |
| 2 | 163 ÷ 31 = 5 remainder 8 |
| 3 | 31 ÷ 8 = 3 remainder 7 |
| 4 | 8 ÷ 7 = 1 remainder 1 |
| 5 | 7 ÷ 1 = 7 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 46 and 128 | 2944 |
| 160 and 127 | 20320 |
| 107 and 29 | 3103 |
| 110 and 23 | 2530 |
| 81 and 146 | 11826 |