Least Common Multiple (LCM) of 177 and 138
The least common multiple (LCM) of 177 and 138 is 8142.
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 177 and 138?
First, calculate the GCD of 177 and 138 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 177 ÷ 138 = 1 remainder 39 |
| 2 | 138 ÷ 39 = 3 remainder 21 |
| 3 | 39 ÷ 21 = 1 remainder 18 |
| 4 | 21 ÷ 18 = 1 remainder 3 |
| 5 | 18 ÷ 3 = 6 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 85 and 198 | 16830 |
| 111 and 196 | 21756 |
| 15 and 188 | 2820 |
| 147 and 68 | 9996 |
| 87 and 66 | 1914 |