Least Common Multiple (LCM) of 20 and 92
The least common multiple (LCM) of 20 and 92 is 460.
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 92?
First, calculate the GCD of 20 and 92 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 20 ÷ 92 = 0 remainder 20 |
| 2 | 92 ÷ 20 = 4 remainder 12 |
| 3 | 20 ÷ 12 = 1 remainder 8 |
| 4 | 12 ÷ 8 = 1 remainder 4 |
| 5 | 8 ÷ 4 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 39 and 103 | 4017 |
| 97 and 12 | 1164 |
| 21 and 30 | 210 |
| 156 and 172 | 6708 |
| 111 and 139 | 15429 |