Least Common Multiple (LCM) of 200 and 128
The least common multiple (LCM) of 200 and 128 is 3200.
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 200 and 128?
First, calculate the GCD of 200 and 128 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 200 ÷ 128 = 1 remainder 72 |
| 2 | 128 ÷ 72 = 1 remainder 56 |
| 3 | 72 ÷ 56 = 1 remainder 16 |
| 4 | 56 ÷ 16 = 3 remainder 8 |
| 5 | 16 ÷ 8 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 170 and 40 | 680 |
| 19 and 186 | 3534 |
| 73 and 132 | 9636 |
| 181 and 82 | 14842 |
| 142 and 191 | 27122 |