Least Common Multiple (LCM) of 178 and 111
The least common multiple (LCM) of 178 and 111 is 19758.
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 178 and 111?
First, calculate the GCD of 178 and 111 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 178 ÷ 111 = 1 remainder 67 |
| 2 | 111 ÷ 67 = 1 remainder 44 |
| 3 | 67 ÷ 44 = 1 remainder 23 |
| 4 | 44 ÷ 23 = 1 remainder 21 |
| 5 | 23 ÷ 21 = 1 remainder 2 |
| 6 | 21 ÷ 2 = 10 remainder 1 |
| 7 | 2 ÷ 1 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 149 and 173 | 25777 |
| 178 and 95 | 16910 |
| 138 and 197 | 27186 |
| 116 and 135 | 15660 |
| 79 and 128 | 10112 |