Last month during the Lions Virtual Draft Party, quarterback Matthew Stafford appeared to solve a pretty big multiplication problem in his head during. 

The video of Stafford solving the problem went viral and it turns out it was all a lie.  He came clean about the entire thing being something him and his former teammate TJ Lang have been doing for years as a trick.

Lang texted Stafford the answer.  After that it’s up to the Lions quarterback to sell it.  And sell it he did.

RELATED: Matthew Stafford is Incredible at Math

Flip the Page to see Stafford come clean: