The Last Theorem has 311 pages.
The Parrot's Theorem has 416 pages.
I'd say thousands of pages. The proof of Fermat's last theorem (alone) was over 100 pages.
The Last Olympian has 381 pages.
This was not the last theorem that Fermat wrote. Rather, it was the last one to be proven/disproven.
there are 381 pages in the Last Olympian.
The Last Egyptian has 287 pages.
The Last Hurrah has 427 pages.
The Last Templar has 524 pages.
The Last Dragonslayer has 280 pages.
The Last Pin has 355 pages.
The Last Sitting has 188 pages.
The Last of the Immortals has 384 pages.