Least Common Multiple (LCM) of 18 and 130
The least common multiple (LCM) of 18 and 130 is 1170.
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 18 and 130?
First, calculate the GCD of 18 and 130 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 18 ÷ 130 = 0 remainder 18 |
| 2 | 130 ÷ 18 = 7 remainder 4 |
| 3 | 18 ÷ 4 = 4 remainder 2 |
| 4 | 4 ÷ 2 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 101 and 173 | 17473 |
| 182 and 108 | 9828 |
| 174 and 194 | 16878 |
| 149 and 110 | 16390 |
| 99 and 97 | 9603 |