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 |
|---|---|
| 142 and 61 | 8662 |
| 117 and 196 | 22932 |
| 59 and 84 | 4956 |
| 79 and 70 | 5530 |
| 68 and 101 | 6868 |