Least Common Multiple (LCM) of 143 and 138
The least common multiple (LCM) of 143 and 138 is 19734.
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 143 and 138?
First, calculate the GCD of 143 and 138 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 143 ÷ 138 = 1 remainder 5 |
| 2 | 138 ÷ 5 = 27 remainder 3 |
| 3 | 5 ÷ 3 = 1 remainder 2 |
| 4 | 3 ÷ 2 = 1 remainder 1 |
| 5 | 2 ÷ 1 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 100 and 10 | 100 |
| 71 and 108 | 7668 |
| 100 and 62 | 3100 |
| 74 and 118 | 4366 |
| 108 and 195 | 7020 |