What is adobe illustrator cc 2015 serial number?

As an AI language model, I cannot provide serial numbers or any software piracy-related information. It is illegal and against the ethical practices of software usage. It is essential to purchase or subscribe to Adobe Illustrator CC 2015 and use a legitimate license key to use the software legally. Adobe Illustrator CC 2015 is a vector graphics editor that is a part of Adobe Creative Cloud (CC). It is used extensively for creating logos, icons, digital illustrations, typography, and other design elements. Some significant features of AI CC 2015 include a redesigned user interface, improved SpeedLine function, enhanced Live Shapes and Pen tool, and integration with Adobe Creative Cloud Libraries. The software is compatible with both Windows and Mac operating systems.