Least Common Multiple (LCM) of 20 and 2
The least common multiple (LCM) of 20 and 2 is 20.
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 2?
First, calculate the GCD of 20 and 2 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 20 ÷ 2 = 10 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 47 and 96 | 4512 |
| 120 and 141 | 5640 |
| 144 and 110 | 7920 |
| 24 and 110 | 1320 |
| 118 and 128 | 7552 |