Least Common Multiple (LCM) of 128 and 151
The least common multiple (LCM) of 128 and 151 is 19328.
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 151?
First, calculate the GCD of 128 and 151 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 128 ÷ 151 = 0 remainder 128 |
| 2 | 151 ÷ 128 = 1 remainder 23 |
| 3 | 128 ÷ 23 = 5 remainder 13 |
| 4 | 23 ÷ 13 = 1 remainder 10 |
| 5 | 13 ÷ 10 = 1 remainder 3 |
| 6 | 10 ÷ 3 = 3 remainder 1 |
| 7 | 3 ÷ 1 = 3 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 129 and 58 | 7482 |
| 107 and 197 | 21079 |
| 189 and 145 | 27405 |
| 145 and 60 | 1740 |
| 91 and 166 | 15106 |