Least Common Multiple (LCM) of 13 and 23
The least common multiple (LCM) of 13 and 23 is 299.
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 23?
First, calculate the GCD of 13 and 23 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 13 ÷ 23 = 0 remainder 13 |
| 2 | 23 ÷ 13 = 1 remainder 10 |
| 3 | 13 ÷ 10 = 1 remainder 3 |
| 4 | 10 ÷ 3 = 3 remainder 1 |
| 5 | 3 ÷ 1 = 3 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 48 and 149 | 7152 |
| 190 and 83 | 15770 |
| 56 and 77 | 616 |
| 154 and 16 | 1232 |
| 102 and 11 | 1122 |