Least Common Multiple (LCM) of 61 and 103
The least common multiple (LCM) of 61 and 103 is 6283.
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 103?
First, calculate the GCD of 61 and 103 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 61 ÷ 103 = 0 remainder 61 |
| 2 | 103 ÷ 61 = 1 remainder 42 |
| 3 | 61 ÷ 42 = 1 remainder 19 |
| 4 | 42 ÷ 19 = 2 remainder 4 |
| 5 | 19 ÷ 4 = 4 remainder 3 |
| 6 | 4 ÷ 3 = 1 remainder 1 |
| 7 | 3 ÷ 1 = 3 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 128 and 168 | 2688 |
| 41 and 108 | 4428 |
| 123 and 163 | 20049 |
| 154 and 81 | 12474 |
| 67 and 148 | 9916 |