Least Common Multiple (LCM) of 77 and 189
The least common multiple (LCM) of 77 and 189 is 2079.
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 77 and 189?
First, calculate the GCD of 77 and 189 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 77 ÷ 189 = 0 remainder 77 |
| 2 | 189 ÷ 77 = 2 remainder 35 |
| 3 | 77 ÷ 35 = 2 remainder 7 |
| 4 | 35 ÷ 7 = 5 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 165 and 194 | 32010 |
| 72 and 122 | 4392 |
| 145 and 167 | 24215 |
| 159 and 100 | 15900 |
| 11 and 89 | 979 |