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# What is the hardest math ever?

Dwyane Johnson
BA, Contributor

These Are the 10 Toughest Math Problems Ever Solved
• The Collatz Conjecture. Dave Linkletter. ...
• Goldbach's Conjecture? Creative Commons. ...
• The Twin Prime Conjecture. ...
• The Riemann Hypothesis. ...
• The Birch and Swinnerton-Dyer Conjecture. ...
• The Kissing Number Problem. ...
• The Unknotting Problem. ...
• The Large Cardinal Project.

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