P versus NP

P versus NP is considered as one of the most important open problems in computer science. This consists in knowing the answer of the following question: Is P equal to NP? A precise statement of the P versus NP problem was introduced independently in 1971 by Stephen Cook and Leonid Levin. Since that date, all efforts to find a proof for this problem have failed. To attack the P = NP question the concept of NP-completeness is very useful. If any single NP-complete problem is in P, then P = NP. Quadratic Congruences is a well-known NP-complete problem. We prove Quadratic Congruences is also in P. In this way, we demonstrate that P = NP.