Least Common Multiple (LCM) of 76 and 81
The least common multiple (LCM) of 76 and 81 is 6156.
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 76 and 81?
First, calculate the GCD of 76 and 81 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 76 ÷ 81 = 0 remainder 76 |
| 2 | 81 ÷ 76 = 1 remainder 5 |
| 3 | 76 ÷ 5 = 15 remainder 1 |
| 4 | 5 ÷ 1 = 5 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 186 and 27 | 1674 |
| 151 and 87 | 13137 |
| 16 and 135 | 2160 |
| 113 and 70 | 7910 |
| 70 and 28 | 140 |