Least Common Multiple (LCM) of 42 and 150
The least common multiple (LCM) of 42 and 150 is 1050.
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 150?
First, calculate the GCD of 42 and 150 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 42 ÷ 150 = 0 remainder 42 |
| 2 | 150 ÷ 42 = 3 remainder 24 |
| 3 | 42 ÷ 24 = 1 remainder 18 |
| 4 | 24 ÷ 18 = 1 remainder 6 |
| 5 | 18 ÷ 6 = 3 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 33 and 36 | 396 |
| 194 and 53 | 10282 |
| 145 and 149 | 21605 |
| 142 and 129 | 18318 |
| 19 and 45 | 855 |