Least Common Multiple (LCM) of 69 and 143
The least common multiple (LCM) of 69 and 143 is 9867.
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 69 and 143?
First, calculate the GCD of 69 and 143 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 69 ÷ 143 = 0 remainder 69 |
| 2 | 143 ÷ 69 = 2 remainder 5 |
| 3 | 69 ÷ 5 = 13 remainder 4 |
| 4 | 5 ÷ 4 = 1 remainder 1 |
| 5 | 4 ÷ 1 = 4 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 102 and 126 | 2142 |
| 126 and 192 | 4032 |
| 182 and 155 | 28210 |
| 134 and 31 | 4154 |
| 61 and 17 | 1037 |