Least Common Multiple (LCM) of 71 and 65
The least common multiple (LCM) of 71 and 65 is 4615.
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 71 and 65?
First, calculate the GCD of 71 and 65 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 71 ÷ 65 = 1 remainder 6 |
| 2 | 65 ÷ 6 = 10 remainder 5 |
| 3 | 6 ÷ 5 = 1 remainder 1 |
| 4 | 5 ÷ 1 = 5 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 155 and 81 | 12555 |
| 138 and 169 | 23322 |
| 34 and 68 | 68 |
| 152 and 85 | 12920 |
| 156 and 92 | 3588 |