Least Common Multiple (LCM) of 143 and 15
The least common multiple (LCM) of 143 and 15 is 2145.
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 15?
First, calculate the GCD of 143 and 15 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 143 ÷ 15 = 9 remainder 8 |
| 2 | 15 ÷ 8 = 1 remainder 7 |
| 3 | 8 ÷ 7 = 1 remainder 1 |
| 4 | 7 ÷ 1 = 7 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 132 and 91 | 12012 |
| 101 and 33 | 3333 |
| 129 and 147 | 6321 |
| 22 and 50 | 550 |
| 42 and 99 | 1386 |