Least Common Multiple (LCM) of 200 and 42
The least common multiple (LCM) of 200 and 42 is 4200.
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 200 and 42?
First, calculate the GCD of 200 and 42 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 200 ÷ 42 = 4 remainder 32 |
| 2 | 42 ÷ 32 = 1 remainder 10 |
| 3 | 32 ÷ 10 = 3 remainder 2 |
| 4 | 10 ÷ 2 = 5 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 99 and 162 | 1782 |
| 123 and 76 | 9348 |
| 47 and 48 | 2256 |
| 165 and 192 | 10560 |
| 124 and 122 | 7564 |