Least Common Multiple (LCM) of 143 and 55
The least common multiple (LCM) of 143 and 55 is 715.
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 55?
First, calculate the GCD of 143 and 55 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 143 ÷ 55 = 2 remainder 33 |
| 2 | 55 ÷ 33 = 1 remainder 22 |
| 3 | 33 ÷ 22 = 1 remainder 11 |
| 4 | 22 ÷ 11 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 131 and 21 | 2751 |
| 133 and 20 | 2660 |
| 200 and 165 | 6600 |
| 144 and 11 | 1584 |
| 153 and 184 | 28152 |