Least Common Multiple (LCM) of 142 and 28
The least common multiple (LCM) of 142 and 28 is 1988.
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 28?
First, calculate the GCD of 142 and 28 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 142 ÷ 28 = 5 remainder 2 |
| 2 | 28 ÷ 2 = 14 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 111 and 40 | 4440 |
| 182 and 197 | 35854 |
| 80 and 90 | 720 |
| 11 and 29 | 319 |
| 20 and 36 | 180 |