Least Common Multiple (LCM) of 20 and 58
The least common multiple (LCM) of 20 and 58 is 580.
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 58?
First, calculate the GCD of 20 and 58 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 20 ÷ 58 = 0 remainder 20 |
| 2 | 58 ÷ 20 = 2 remainder 18 |
| 3 | 20 ÷ 18 = 1 remainder 2 |
| 4 | 18 ÷ 2 = 9 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 21 and 177 | 1239 |
| 102 and 193 | 19686 |
| 91 and 13 | 91 |
| 195 and 170 | 6630 |
| 79 and 182 | 14378 |