Least Common Multiple (LCM) of 58 and 81
The least common multiple (LCM) of 58 and 81 is 4698.
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 58 and 81?
First, calculate the GCD of 58 and 81 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 58 ÷ 81 = 0 remainder 58 |
| 2 | 81 ÷ 58 = 1 remainder 23 |
| 3 | 58 ÷ 23 = 2 remainder 12 |
| 4 | 23 ÷ 12 = 1 remainder 11 |
| 5 | 12 ÷ 11 = 1 remainder 1 |
| 6 | 11 ÷ 1 = 11 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 137 and 160 | 21920 |
| 53 and 117 | 6201 |
| 99 and 126 | 1386 |
| 92 and 42 | 1932 |
| 172 and 92 | 3956 |