Least Common Multiple (LCM) of 172 and 155
The least common multiple (LCM) of 172 and 155 is 26660.
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 172 and 155?
First, calculate the GCD of 172 and 155 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 172 ÷ 155 = 1 remainder 17 |
| 2 | 155 ÷ 17 = 9 remainder 2 |
| 3 | 17 ÷ 2 = 8 remainder 1 |
| 4 | 2 ÷ 1 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 195 and 98 | 19110 |
| 162 and 63 | 1134 |
| 195 and 121 | 23595 |
| 86 and 158 | 6794 |
| 70 and 138 | 4830 |