Least Common Multiple (LCM) of 155 and 17
The least common multiple (LCM) of 155 and 17 is 2635.
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 17?
First, calculate the GCD of 155 and 17 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 155 ÷ 17 = 9 remainder 2 |
| 2 | 17 ÷ 2 = 8 remainder 1 |
| 3 | 2 ÷ 1 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 172 and 30 | 2580 |
| 151 and 166 | 25066 |
| 31 and 125 | 3875 |
| 168 and 109 | 18312 |
| 60 and 172 | 2580 |