Least Common Multiple (LCM) of 173 and 138
The least common multiple (LCM) of 173 and 138 is 23874.
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 173 and 138?
First, calculate the GCD of 173 and 138 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 173 ÷ 138 = 1 remainder 35 |
| 2 | 138 ÷ 35 = 3 remainder 33 |
| 3 | 35 ÷ 33 = 1 remainder 2 |
| 4 | 33 ÷ 2 = 16 remainder 1 |
| 5 | 2 ÷ 1 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 118 and 180 | 10620 |
| 49 and 109 | 5341 |
| 57 and 38 | 114 |
| 11 and 70 | 770 |
| 44 and 44 | 44 |