Least Common Multiple (LCM) of 20 and 200
The least common multiple (LCM) of 20 and 200 is 200.
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 20 and 200?
First, calculate the GCD of 20 and 200 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 20 ÷ 200 = 0 remainder 20 |
| 2 | 200 ÷ 20 = 10 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 122 and 85 | 10370 |
| 55 and 115 | 1265 |
| 64 and 197 | 12608 |
| 115 and 157 | 18055 |
| 30 and 56 | 840 |