Least Common Multiple (LCM) of 42 and 34
The least common multiple (LCM) of 42 and 34 is 714.
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 34?
First, calculate the GCD of 42 and 34 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 42 ÷ 34 = 1 remainder 8 |
| 2 | 34 ÷ 8 = 4 remainder 2 |
| 3 | 8 ÷ 2 = 4 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 141 and 167 | 23547 |
| 191 and 155 | 29605 |
| 47 and 80 | 3760 |
| 124 and 135 | 16740 |
| 155 and 163 | 25265 |