Least Common Multiple (LCM) of 61 and 73
The least common multiple (LCM) of 61 and 73 is 4453.
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 61 and 73?
First, calculate the GCD of 61 and 73 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 61 ÷ 73 = 0 remainder 61 |
| 2 | 73 ÷ 61 = 1 remainder 12 |
| 3 | 61 ÷ 12 = 5 remainder 1 |
| 4 | 12 ÷ 1 = 12 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 178 and 84 | 7476 |
| 124 and 105 | 13020 |
| 142 and 144 | 10224 |
| 168 and 129 | 7224 |
| 129 and 100 | 12900 |