Least Common Multiple (LCM) of 20 and 96
The least common multiple (LCM) of 20 and 96 is 480.
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 96?
First, calculate the GCD of 20 and 96 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 20 ÷ 96 = 0 remainder 20 |
| 2 | 96 ÷ 20 = 4 remainder 16 |
| 3 | 20 ÷ 16 = 1 remainder 4 |
| 4 | 16 ÷ 4 = 4 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 122 and 88 | 5368 |
| 131 and 128 | 16768 |
| 28 and 16 | 112 |
| 71 and 200 | 14200 |
| 21 and 76 | 1596 |