Least Common Multiple (LCM) of 19 and 112
The least common multiple (LCM) of 19 and 112 is 2128.
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 19 and 112?
First, calculate the GCD of 19 and 112 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 19 ÷ 112 = 0 remainder 19 |
| 2 | 112 ÷ 19 = 5 remainder 17 |
| 3 | 19 ÷ 17 = 1 remainder 2 |
| 4 | 17 ÷ 2 = 8 remainder 1 |
| 5 | 2 ÷ 1 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 66 and 122 | 4026 |
| 83 and 111 | 9213 |
| 20 and 178 | 1780 |
| 72 and 183 | 4392 |
| 120 and 149 | 17880 |