Least Common Multiple (LCM) of 68 and 130
The least common multiple (LCM) of 68 and 130 is 4420.
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 68 and 130?
First, calculate the GCD of 68 and 130 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 68 ÷ 130 = 0 remainder 68 |
| 2 | 130 ÷ 68 = 1 remainder 62 |
| 3 | 68 ÷ 62 = 1 remainder 6 |
| 4 | 62 ÷ 6 = 10 remainder 2 |
| 5 | 6 ÷ 2 = 3 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 42 and 96 | 672 |
| 113 and 81 | 9153 |
| 162 and 95 | 15390 |
| 104 and 32 | 416 |
| 21 and 115 | 2415 |