Least Common Multiple (LCM) of 127 and 28
The least common multiple (LCM) of 127 and 28 is 3556.
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 28?
First, calculate the GCD of 127 and 28 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 127 ÷ 28 = 4 remainder 15 |
| 2 | 28 ÷ 15 = 1 remainder 13 |
| 3 | 15 ÷ 13 = 1 remainder 2 |
| 4 | 13 ÷ 2 = 6 remainder 1 |
| 5 | 2 ÷ 1 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 49 and 132 | 6468 |
| 151 and 126 | 19026 |
| 142 and 164 | 11644 |
| 154 and 56 | 616 |
| 68 and 67 | 4556 |