Least Common Multiple (LCM) of 128 and 68
The least common multiple (LCM) of 128 and 68 is 2176.
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 68?
First, calculate the GCD of 128 and 68 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 128 ÷ 68 = 1 remainder 60 |
| 2 | 68 ÷ 60 = 1 remainder 8 |
| 3 | 60 ÷ 8 = 7 remainder 4 |
| 4 | 8 ÷ 4 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 167 and 120 | 20040 |
| 174 and 32 | 2784 |
| 158 and 45 | 7110 |
| 39 and 119 | 4641 |
| 148 and 143 | 21164 |