Least Common Multiple (LCM) of 71 and 63
The least common multiple (LCM) of 71 and 63 is 4473.
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 71 and 63?
First, calculate the GCD of 71 and 63 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 71 ÷ 63 = 1 remainder 8 |
| 2 | 63 ÷ 8 = 7 remainder 7 |
| 3 | 8 ÷ 7 = 1 remainder 1 |
| 4 | 7 ÷ 1 = 7 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 143 and 18 | 2574 |
| 182 and 93 | 16926 |
| 128 and 36 | 1152 |
| 121 and 29 | 3509 |
| 60 and 46 | 1380 |