Least Common Multiple (LCM) of 64 and 100
The least common multiple (LCM) of 64 and 100 is 1600.
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 64 and 100?
First, calculate the GCD of 64 and 100 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 64 ÷ 100 = 0 remainder 64 |
| 2 | 100 ÷ 64 = 1 remainder 36 |
| 3 | 64 ÷ 36 = 1 remainder 28 |
| 4 | 36 ÷ 28 = 1 remainder 8 |
| 5 | 28 ÷ 8 = 3 remainder 4 |
| 6 | 8 ÷ 4 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 161 and 144 | 23184 |
| 194 and 84 | 8148 |
| 82 and 78 | 3198 |
| 19 and 45 | 855 |
| 128 and 98 | 6272 |