Least Common Multiple (LCM) of 199 and 20
The least common multiple (LCM) of 199 and 20 is 3980.
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 199 and 20?
First, calculate the GCD of 199 and 20 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 199 ÷ 20 = 9 remainder 19 |
| 2 | 20 ÷ 19 = 1 remainder 1 |
| 3 | 19 ÷ 1 = 19 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 124 and 100 | 3100 |
| 141 and 122 | 17202 |
| 21 and 114 | 798 |
| 49 and 77 | 539 |
| 138 and 156 | 3588 |