Least Common Multiple (LCM) of 172 and 168
The least common multiple (LCM) of 172 and 168 is 7224.
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 168?
First, calculate the GCD of 172 and 168 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 172 ÷ 168 = 1 remainder 4 |
| 2 | 168 ÷ 4 = 42 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 168 and 161 | 3864 |
| 31 and 38 | 1178 |
| 48 and 122 | 2928 |
| 39 and 171 | 2223 |
| 31 and 100 | 3100 |