Least Common Multiple (LCM) of 77 and 174
The least common multiple (LCM) of 77 and 174 is 13398.
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 77 and 174?
First, calculate the GCD of 77 and 174 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 77 ÷ 174 = 0 remainder 77 |
| 2 | 174 ÷ 77 = 2 remainder 20 |
| 3 | 77 ÷ 20 = 3 remainder 17 |
| 4 | 20 ÷ 17 = 1 remainder 3 |
| 5 | 17 ÷ 3 = 5 remainder 2 |
| 6 | 3 ÷ 2 = 1 remainder 1 |
| 7 | 2 ÷ 1 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 140 and 88 | 3080 |
| 121 and 181 | 21901 |
| 108 and 172 | 4644 |
| 123 and 146 | 17958 |
| 181 and 157 | 28417 |