Least Common Multiple (LCM) of 42 and 67
The least common multiple (LCM) of 42 and 67 is 2814.
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 42 and 67?
First, calculate the GCD of 42 and 67 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 42 ÷ 67 = 0 remainder 42 |
| 2 | 67 ÷ 42 = 1 remainder 25 |
| 3 | 42 ÷ 25 = 1 remainder 17 |
| 4 | 25 ÷ 17 = 1 remainder 8 |
| 5 | 17 ÷ 8 = 2 remainder 1 |
| 6 | 8 ÷ 1 = 8 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 24 and 103 | 2472 |
| 178 and 63 | 11214 |
| 182 and 141 | 25662 |
| 40 and 200 | 200 |
| 96 and 85 | 8160 |