Least Common Multiple (LCM) of 66 and 57
The least common multiple (LCM) of 66 and 57 is 1254.
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 66 and 57?
First, calculate the GCD of 66 and 57 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 66 ÷ 57 = 1 remainder 9 |
| 2 | 57 ÷ 9 = 6 remainder 3 |
| 3 | 9 ÷ 3 = 3 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 117 and 102 | 3978 |
| 87 and 22 | 1914 |
| 149 and 141 | 21009 |
| 128 and 119 | 15232 |
| 164 and 30 | 2460 |