Least Common Multiple (LCM) of 130 and 55
The least common multiple (LCM) of 130 and 55 is 1430.
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 55?
First, calculate the GCD of 130 and 55 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 130 ÷ 55 = 2 remainder 20 |
| 2 | 55 ÷ 20 = 2 remainder 15 |
| 3 | 20 ÷ 15 = 1 remainder 5 |
| 4 | 15 ÷ 5 = 3 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 168 and 174 | 4872 |
| 74 and 145 | 10730 |
| 137 and 186 | 25482 |
| 144 and 15 | 720 |
| 127 and 136 | 17272 |