Least Common Multiple (LCM) of 15 and 142
The least common multiple (LCM) of 15 and 142 is 2130.
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 15 and 142?
First, calculate the GCD of 15 and 142 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 15 ÷ 142 = 0 remainder 15 |
| 2 | 142 ÷ 15 = 9 remainder 7 |
| 3 | 15 ÷ 7 = 2 remainder 1 |
| 4 | 7 ÷ 1 = 7 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 166 and 77 | 12782 |
| 120 and 77 | 9240 |
| 137 and 119 | 16303 |
| 22 and 160 | 1760 |
| 81 and 121 | 9801 |