Least Common Multiple (LCM) of 172 and 27
The least common multiple (LCM) of 172 and 27 is 4644.
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 27?
First, calculate the GCD of 172 and 27 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 172 ÷ 27 = 6 remainder 10 |
| 2 | 27 ÷ 10 = 2 remainder 7 |
| 3 | 10 ÷ 7 = 1 remainder 3 |
| 4 | 7 ÷ 3 = 2 remainder 1 |
| 5 | 3 ÷ 1 = 3 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 32 and 150 | 2400 |
| 106 and 84 | 4452 |
| 143 and 162 | 23166 |
| 85 and 15 | 255 |
| 91 and 74 | 6734 |