Least Common Multiple (LCM) of 27 and 140
The least common multiple (LCM) of 27 and 140 is 3780.
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 27 and 140?
First, calculate the GCD of 27 and 140 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 27 ÷ 140 = 0 remainder 27 |
| 2 | 140 ÷ 27 = 5 remainder 5 |
| 3 | 27 ÷ 5 = 5 remainder 2 |
| 4 | 5 ÷ 2 = 2 remainder 1 |
| 5 | 2 ÷ 1 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 149 and 84 | 12516 |
| 164 and 28 | 1148 |
| 198 and 186 | 6138 |
| 180 and 158 | 14220 |
| 71 and 179 | 12709 |