Least Common Multiple (LCM) of 77 and 196
The least common multiple (LCM) of 77 and 196 is 2156.
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 196?
First, calculate the GCD of 77 and 196 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 77 ÷ 196 = 0 remainder 77 |
| 2 | 196 ÷ 77 = 2 remainder 42 |
| 3 | 77 ÷ 42 = 1 remainder 35 |
| 4 | 42 ÷ 35 = 1 remainder 7 |
| 5 | 35 ÷ 7 = 5 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 39 and 39 | 39 |
| 108 and 14 | 756 |
| 47 and 122 | 5734 |
| 52 and 94 | 2444 |
| 96 and 15 | 480 |