Least Common Multiple (LCM) of 175 and 123
The least common multiple (LCM) of 175 and 123 is 21525.
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 175 and 123?
First, calculate the GCD of 175 and 123 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 175 ÷ 123 = 1 remainder 52 |
| 2 | 123 ÷ 52 = 2 remainder 19 |
| 3 | 52 ÷ 19 = 2 remainder 14 |
| 4 | 19 ÷ 14 = 1 remainder 5 |
| 5 | 14 ÷ 5 = 2 remainder 4 |
| 6 | 5 ÷ 4 = 1 remainder 1 |
| 7 | 4 ÷ 1 = 4 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 52 and 30 | 780 |
| 61 and 70 | 4270 |
| 18 and 114 | 342 |
| 192 and 143 | 27456 |
| 101 and 21 | 2121 |