Least Common Multiple (LCM) of 19 and 79
The least common multiple (LCM) of 19 and 79 is 1501.
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 79?
First, calculate the GCD of 19 and 79 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 19 ÷ 79 = 0 remainder 19 |
| 2 | 79 ÷ 19 = 4 remainder 3 |
| 3 | 19 ÷ 3 = 6 remainder 1 |
| 4 | 3 ÷ 1 = 3 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 190 and 143 | 27170 |
| 173 and 45 | 7785 |
| 183 and 10 | 1830 |
| 55 and 140 | 1540 |
| 186 and 132 | 4092 |