Least Common Multiple (LCM) of 196 and 77
The least common multiple (LCM) of 196 and 77 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 196 and 77?
First, calculate the GCD of 196 and 77 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 196 ÷ 77 = 2 remainder 42 |
| 2 | 77 ÷ 42 = 1 remainder 35 |
| 3 | 42 ÷ 35 = 1 remainder 7 |
| 4 | 35 ÷ 7 = 5 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 81 and 90 | 810 |
| 194 and 107 | 20758 |
| 156 and 141 | 7332 |
| 36 and 76 | 684 |
| 181 and 59 | 10679 |