Least Common Multiple (LCM) of 19 and 157
The least common multiple (LCM) of 19 and 157 is 2983.
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 157?
First, calculate the GCD of 19 and 157 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 19 ÷ 157 = 0 remainder 19 |
| 2 | 157 ÷ 19 = 8 remainder 5 |
| 3 | 19 ÷ 5 = 3 remainder 4 |
| 4 | 5 ÷ 4 = 1 remainder 1 |
| 5 | 4 ÷ 1 = 4 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 72 and 71 | 5112 |
| 31 and 45 | 1395 |
| 149 and 186 | 27714 |
| 52 and 23 | 1196 |
| 129 and 40 | 5160 |