Serial numbers for software are typically provided by the software vendor at the time of purchase. It is not recommended to seek or share unauthorized serial numbers as it may violate software licensing agreements.
Some students simply do not have the money to use the programs legally. I understand them perfectly. I had many friends who allowed themselves things that I didn’t even think about. For example, my friend could simply turn to term papers writing services, he used https://edubirdie.com/term-papers-writing-services for this. Of course this put pressure on me, but I tried not to show it. In short, the conclusion is that either buy a license, or it’s better to endure it. Although there are always discounts for students.