Least Common Multiple (LCM) of 172 and 124
The least common multiple (LCM) of 172 and 124 is 5332.
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 124?
First, calculate the GCD of 172 and 124 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 172 ÷ 124 = 1 remainder 48 |
| 2 | 124 ÷ 48 = 2 remainder 28 |
| 3 | 48 ÷ 28 = 1 remainder 20 |
| 4 | 28 ÷ 20 = 1 remainder 8 |
| 5 | 20 ÷ 8 = 2 remainder 4 |
| 6 | 8 ÷ 4 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 138 and 183 | 8418 |
| 89 and 124 | 11036 |
| 21 and 138 | 966 |
| 177 and 157 | 27789 |
| 121 and 70 | 8470 |