Least Common Multiple (LCM) of 143 and 87
The least common multiple (LCM) of 143 and 87 is 12441.
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 87?
First, calculate the GCD of 143 and 87 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 143 ÷ 87 = 1 remainder 56 |
| 2 | 87 ÷ 56 = 1 remainder 31 |
| 3 | 56 ÷ 31 = 1 remainder 25 |
| 4 | 31 ÷ 25 = 1 remainder 6 |
| 5 | 25 ÷ 6 = 4 remainder 1 |
| 6 | 6 ÷ 1 = 6 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 132 and 73 | 9636 |
| 172 and 101 | 17372 |
| 119 and 70 | 1190 |
| 170 and 138 | 11730 |
| 64 and 21 | 1344 |