Least Common Multiple (LCM) of 117 and 128
The least common multiple (LCM) of 117 and 128 is 14976.
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 117 and 128?
First, calculate the GCD of 117 and 128 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 117 ÷ 128 = 0 remainder 117 |
| 2 | 128 ÷ 117 = 1 remainder 11 |
| 3 | 117 ÷ 11 = 10 remainder 7 |
| 4 | 11 ÷ 7 = 1 remainder 4 |
| 5 | 7 ÷ 4 = 1 remainder 3 |
| 6 | 4 ÷ 3 = 1 remainder 1 |
| 7 | 3 ÷ 1 = 3 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 80 and 164 | 3280 |
| 10 and 30 | 30 |
| 107 and 187 | 20009 |
| 100 and 192 | 4800 |
| 46 and 18 | 414 |