Least Common Multiple (LCM) of 168 and 125
The least common multiple (LCM) of 168 and 125 is 21000.
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 168 and 125?
First, calculate the GCD of 168 and 125 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 168 ÷ 125 = 1 remainder 43 |
| 2 | 125 ÷ 43 = 2 remainder 39 |
| 3 | 43 ÷ 39 = 1 remainder 4 |
| 4 | 39 ÷ 4 = 9 remainder 3 |
| 5 | 4 ÷ 3 = 1 remainder 1 |
| 6 | 3 ÷ 1 = 3 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 176 and 107 | 18832 |
| 140 and 12 | 420 |
| 65 and 80 | 1040 |
| 33 and 160 | 5280 |
| 178 and 92 | 8188 |