Least Common Multiple (LCM) of 130 and 138
The least common multiple (LCM) of 130 and 138 is 8970.
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 130 and 138?
First, calculate the GCD of 130 and 138 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 130 ÷ 138 = 0 remainder 130 |
| 2 | 138 ÷ 130 = 1 remainder 8 |
| 3 | 130 ÷ 8 = 16 remainder 2 |
| 4 | 8 ÷ 2 = 4 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 55 and 15 | 165 |
| 124 and 96 | 2976 |
| 174 and 200 | 17400 |
| 30 and 153 | 1530 |
| 125 and 55 | 1375 |