Least Common Multiple (LCM) of 172 and 23
The least common multiple (LCM) of 172 and 23 is 3956.
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 23?
First, calculate the GCD of 172 and 23 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 172 ÷ 23 = 7 remainder 11 |
| 2 | 23 ÷ 11 = 2 remainder 1 |
| 3 | 11 ÷ 1 = 11 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 55 and 144 | 7920 |
| 138 and 151 | 20838 |
| 133 and 14 | 266 |
| 77 and 87 | 6699 |
| 162 and 165 | 8910 |