Least Common Multiple (LCM) of 131 and 78
The least common multiple (LCM) of 131 and 78 is 10218.
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 131 and 78?
First, calculate the GCD of 131 and 78 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 131 ÷ 78 = 1 remainder 53 |
| 2 | 78 ÷ 53 = 1 remainder 25 |
| 3 | 53 ÷ 25 = 2 remainder 3 |
| 4 | 25 ÷ 3 = 8 remainder 1 |
| 5 | 3 ÷ 1 = 3 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 172 and 149 | 25628 |
| 147 and 85 | 12495 |
| 32 and 168 | 672 |
| 52 and 146 | 3796 |
| 94 and 68 | 3196 |