Fermat’s Last Theorem for Regular Primes

This FLT (for Regular Primes) is only first part of proof up till Ideal’s Ring Theory by Kumma.

The final complete proof by Andrew Wiles (1994) used more tools: Elliptical curve + Galois Theory.

The complete proof FLT by Andrew Wiles taking him 7 years in solitude, still a short time compared to 350 years before him but failed by the grandmasters Euler/Gauss etc. Today Andrew Wiles is hailed as the greatest 21CE Mathematician, even Fields Medal gave a Special Award to him (even he was > limit age of 40 years old ).