Least Common Multiple (LCM) of 123 and 176
The least common multiple (LCM) of 123 and 176 is 21648.
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 123 and 176?
First, calculate the GCD of 123 and 176 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 123 ÷ 176 = 0 remainder 123 |
| 2 | 176 ÷ 123 = 1 remainder 53 |
| 3 | 123 ÷ 53 = 2 remainder 17 |
| 4 | 53 ÷ 17 = 3 remainder 2 |
| 5 | 17 ÷ 2 = 8 remainder 1 |
| 6 | 2 ÷ 1 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 15 and 38 | 570 |
| 121 and 105 | 12705 |
| 13 and 147 | 1911 |
| 85 and 31 | 2635 |
| 194 and 151 | 29294 |