Least Common Multiple (LCM) of 117 and 71
The least common multiple (LCM) of 117 and 71 is 8307.
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 117 and 71?
First, calculate the GCD of 117 and 71 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 117 ÷ 71 = 1 remainder 46 |
| 2 | 71 ÷ 46 = 1 remainder 25 |
| 3 | 46 ÷ 25 = 1 remainder 21 |
| 4 | 25 ÷ 21 = 1 remainder 4 |
| 5 | 21 ÷ 4 = 5 remainder 1 |
| 6 | 4 ÷ 1 = 4 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 138 and 191 | 26358 |
| 159 and 19 | 3021 |
| 162 and 170 | 13770 |
| 186 and 33 | 2046 |
| 97 and 112 | 10864 |