Artificial Intelligence AI Just Solved a 350-Year-Old Math Problem By Writing the Longest Proof Ever By Coin Gazette Editorial September 5, 2026 1 Min Read Comments Off on AI Just Solved a 350-Year-Old Math Problem By Writing the Longest Proof Ever Anthropic says Claude spent 11 days turning Fermat’s Last Theorem into 13 million lines of code a computer can check itself, no human trust required