Least Common Multiple (LCM) of 193 and 20
The least common multiple (LCM) of 193 and 20 is 3860.
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 193 and 20?
First, calculate the GCD of 193 and 20 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 193 ÷ 20 = 9 remainder 13 |
| 2 | 20 ÷ 13 = 1 remainder 7 |
| 3 | 13 ÷ 7 = 1 remainder 6 |
| 4 | 7 ÷ 6 = 1 remainder 1 |
| 5 | 6 ÷ 1 = 6 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 162 and 91 | 14742 |
| 91 and 141 | 12831 |
| 89 and 157 | 13973 |
| 56 and 16 | 112 |
| 76 and 105 | 7980 |