The "enormous theorem" — one of the greatest achievements in the history of mathematics. Over 50 years, more than 100 mathematicians produced a proof spanning tens of thousands of pages to answer a single question: what are all the finite simple groups? Explore the answer through 21 interactive demonstrations, from the prime-order cyclic groups to the Monster and its mysterious moonshine connections.
The atoms of algebra — groups with no proper normal subgroups
Z/pZ and composition series — factoring groups into simple pieces
Why A_n is simple for n ≥ 5 and what that means for polynomials
Matrix groups over finite fields — the 16 infinite families
From the Mathieu groups to the Monster — the exceptions that prove the rule
50 years, 100+ mathematicians, 10,000+ pages — the enormous theorem
The Monster meets modular functions — the most surprising connection in mathematics