Least Common Multiple (LCM) of 13 and 115
The least common multiple (LCM) of 13 and 115 is 1495.
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 13 and 115?
First, calculate the GCD of 13 and 115 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 13 ÷ 115 = 0 remainder 13 |
| 2 | 115 ÷ 13 = 8 remainder 11 |
| 3 | 13 ÷ 11 = 1 remainder 2 |
| 4 | 11 ÷ 2 = 5 remainder 1 |
| 5 | 2 ÷ 1 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 116 and 121 | 14036 |
| 109 and 17 | 1853 |
| 153 and 170 | 1530 |
| 126 and 28 | 252 |
| 41 and 171 | 7011 |