Least Common Multiple (LCM) of 61 and 173
The least common multiple (LCM) of 61 and 173 is 10553.
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 61 and 173?
First, calculate the GCD of 61 and 173 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 61 ÷ 173 = 0 remainder 61 |
| 2 | 173 ÷ 61 = 2 remainder 51 |
| 3 | 61 ÷ 51 = 1 remainder 10 |
| 4 | 51 ÷ 10 = 5 remainder 1 |
| 5 | 10 ÷ 1 = 10 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 13 and 56 | 728 |
| 16 and 200 | 400 |
| 73 and 55 | 4015 |
| 92 and 59 | 5428 |
| 105 and 172 | 18060 |