User contributions
- 04:15, 25 December 2016 (diff | hist) . . (+2,577) . . N File:Practically work done on Factorial Function.jpeg (we will see how Piyush Goel discovered something while playing with numbers. Here is the story . One day while sitting idle, and having nothing important to do he was just scribbling on paper. he was writing random numbers and thinking how could link...) (current)