Least Common Multiple (LCM) of 155 and 13
The least common multiple (LCM) of 155 and 13 is 2015.
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 155 and 13?
First, calculate the GCD of 155 and 13 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 155 ÷ 13 = 11 remainder 12 |
| 2 | 13 ÷ 12 = 1 remainder 1 |
| 3 | 12 ÷ 1 = 12 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 123 and 18 | 738 |
| 89 and 114 | 10146 |
| 66 and 83 | 5478 |
| 169 and 184 | 31096 |
| 133 and 138 | 18354 |