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 |
|---|---|
| 60 and 89 | 5340 |
| 151 and 189 | 28539 |
| 103 and 18 | 1854 |
| 158 and 12 | 948 |
| 112 and 76 | 2128 |