Least Common Multiple (LCM) of 69 and 51
The least common multiple (LCM) of 69 and 51 is 1173.
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 69 and 51?
First, calculate the GCD of 69 and 51 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 69 ÷ 51 = 1 remainder 18 |
| 2 | 51 ÷ 18 = 2 remainder 15 |
| 3 | 18 ÷ 15 = 1 remainder 3 |
| 4 | 15 ÷ 3 = 5 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 143 and 12 | 1716 |
| 65 and 68 | 4420 |
| 131 and 57 | 7467 |
| 94 and 155 | 14570 |
| 72 and 28 | 504 |