Least Common Multiple (LCM) of 61 and 63
The least common multiple (LCM) of 61 and 63 is 3843.
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 63?
First, calculate the GCD of 61 and 63 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 61 ÷ 63 = 0 remainder 61 |
| 2 | 63 ÷ 61 = 1 remainder 2 |
| 3 | 61 ÷ 2 = 30 remainder 1 |
| 4 | 2 ÷ 1 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 86 and 46 | 1978 |
| 127 and 149 | 18923 |
| 144 and 37 | 5328 |
| 161 and 52 | 8372 |
| 142 and 30 | 2130 |