Least Common Multiple (LCM) of 127 and 78
The least common multiple (LCM) of 127 and 78 is 9906.
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 127 and 78?
First, calculate the GCD of 127 and 78 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 127 ÷ 78 = 1 remainder 49 |
| 2 | 78 ÷ 49 = 1 remainder 29 |
| 3 | 49 ÷ 29 = 1 remainder 20 |
| 4 | 29 ÷ 20 = 1 remainder 9 |
| 5 | 20 ÷ 9 = 2 remainder 2 |
| 6 | 9 ÷ 2 = 4 remainder 1 |
| 7 | 2 ÷ 1 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 200 and 97 | 19400 |
| 198 and 10 | 990 |
| 37 and 55 | 2035 |
| 138 and 83 | 11454 |
| 160 and 62 | 4960 |