Least Common Multiple (LCM) of 42 and 62
The least common multiple (LCM) of 42 and 62 is 1302.
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 62?
First, calculate the GCD of 42 and 62 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 42 ÷ 62 = 0 remainder 42 |
| 2 | 62 ÷ 42 = 1 remainder 20 |
| 3 | 42 ÷ 20 = 2 remainder 2 |
| 4 | 20 ÷ 2 = 10 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 118 and 142 | 8378 |
| 57 and 129 | 2451 |
| 30 and 60 | 60 |
| 160 and 17 | 2720 |
| 25 and 94 | 2350 |