Least Common Multiple (LCM) of 142 and 18
The least common multiple (LCM) of 142 and 18 is 1278.
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 142 and 18?
First, calculate the GCD of 142 and 18 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 142 ÷ 18 = 7 remainder 16 |
| 2 | 18 ÷ 16 = 1 remainder 2 |
| 3 | 16 ÷ 2 = 8 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 70 and 197 | 13790 |
| 28 and 30 | 420 |
| 85 and 123 | 10455 |
| 179 and 90 | 16110 |
| 147 and 81 | 3969 |