Least Common Multiple (LCM) of 128 and 13
The least common multiple (LCM) of 128 and 13 is 1664.
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 128 and 13?
First, calculate the GCD of 128 and 13 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 128 ÷ 13 = 9 remainder 11 |
| 2 | 13 ÷ 11 = 1 remainder 2 |
| 3 | 11 ÷ 2 = 5 remainder 1 |
| 4 | 2 ÷ 1 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 133 and 33 | 4389 |
| 187 and 146 | 27302 |
| 167 and 176 | 29392 |
| 134 and 153 | 20502 |
| 35 and 180 | 1260 |