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 |
|---|---|
| 14 and 105 | 210 |
| 146 and 35 | 5110 |
| 100 and 12 | 300 |
| 137 and 31 | 4247 |
| 38 and 58 | 1102 |