Least Common Multiple (LCM) of 143 and 49
The least common multiple (LCM) of 143 and 49 is 7007.
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 49?
First, calculate the GCD of 143 and 49 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 143 ÷ 49 = 2 remainder 45 |
| 2 | 49 ÷ 45 = 1 remainder 4 |
| 3 | 45 ÷ 4 = 11 remainder 1 |
| 4 | 4 ÷ 1 = 4 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 132 and 193 | 25476 |
| 144 and 35 | 5040 |
| 47 and 132 | 6204 |
| 45 and 77 | 3465 |
| 195 and 16 | 3120 |