Least Common Multiple (LCM) of 161 and 130
The least common multiple (LCM) of 161 and 130 is 20930.
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 130?
First, calculate the GCD of 161 and 130 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 161 ÷ 130 = 1 remainder 31 |
| 2 | 130 ÷ 31 = 4 remainder 6 |
| 3 | 31 ÷ 6 = 5 remainder 1 |
| 4 | 6 ÷ 1 = 6 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 143 and 111 | 15873 |
| 171 and 193 | 33003 |
| 198 and 190 | 18810 |
| 48 and 90 | 720 |
| 128 and 82 | 5248 |