Least Common Multiple (LCM) of 28 and 108
The least common multiple (LCM) of 28 and 108 is 756.
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 28 and 108?
First, calculate the GCD of 28 and 108 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 28 ÷ 108 = 0 remainder 28 |
| 2 | 108 ÷ 28 = 3 remainder 24 |
| 3 | 28 ÷ 24 = 1 remainder 4 |
| 4 | 24 ÷ 4 = 6 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 115 and 156 | 17940 |
| 13 and 51 | 663 |
| 193 and 170 | 32810 |
| 163 and 190 | 30970 |
| 175 and 158 | 27650 |