Least Common Multiple (LCM) of 25 and 128
The least common multiple (LCM) of 25 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 25 and 128?
First, calculate the GCD of 25 and 128 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 25 ÷ 128 = 0 remainder 25 |
| 2 | 128 ÷ 25 = 5 remainder 3 |
| 3 | 25 ÷ 3 = 8 remainder 1 |
| 4 | 3 ÷ 1 = 3 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 199 and 114 | 22686 |
| 164 and 81 | 13284 |
| 108 and 141 | 5076 |
| 173 and 165 | 28545 |
| 152 and 150 | 11400 |