Least Common Multiple (LCM) of 77 and 45
The least common multiple (LCM) of 77 and 45 is 3465.
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 45?
First, calculate the GCD of 77 and 45 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 77 ÷ 45 = 1 remainder 32 |
| 2 | 45 ÷ 32 = 1 remainder 13 |
| 3 | 32 ÷ 13 = 2 remainder 6 |
| 4 | 13 ÷ 6 = 2 remainder 1 |
| 5 | 6 ÷ 1 = 6 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 83 and 179 | 14857 |
| 163 and 136 | 22168 |
| 187 and 104 | 19448 |
| 63 and 123 | 2583 |
| 30 and 44 | 660 |