Part of Fermat's copy of "Arithmetica" where he wrote his Last Theorem

Latest answer — July 31, 2026

9 Down

Where a mathematician might leave his most famous scribble in the book’s edge notes 📚

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NYT Crossword

This clue's Friday, July 31, 2026 appearance

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The answer to Part of Fermat's copy of "Arithmetica" where he wrote his Last Theorem in the New York Times crossword is MARGINS — a 7-letter word. It most recently appeared in the New York Times crossword on July 31, 2026, a Friday puzzle, at 9-Down. Below you'll find why that fill fits, every other answer we've recorded for this clue, and links into the puzzle it came from.

Part of Fermat's copy of "Arithmetica" where he wrote his Last Theorem” answer

MARGINS (7 letters)

Reveal the solution one letter at a time with the tiles above if you'd rather nudge yourself toward it than see the whole word at once. Just want it outright? The answer is MARGINS.

Why the answer is MARGINS

Where a mathematician might leave his most famous scribble in the book’s edge notes 📚

What does MARGINS mean?

Reading the plain dictionary sense of MARGINS is often the fastest way to see why it answers this clue.

(verb)

  • provide with an edge or border
  • deposit an amount of money with a broker as security for (an account or transaction)

When else has “Part of Fermat's copy of "Arithmetica" where he wrote his Last Theorem” appeared?

New York Times reuses clues across dates, sometimes with a different answer depending on the grid. Here's where this exact clue has shown up, and what the answer was each time — handy when you're checking whether today's fill is the only one.

July 31, 2026 (most recent) MARGINS. We haven't indexed another appearance of this exact clue yet.

Frequently asked questions

What is the answer to “Part of Fermat's copy of "Arithmetica" where he wrote his Last Theorem”?

The answer is MARGINS, a 7-letter word. It most recently appeared in the New York Times crossword on July 31, 2026.

How many letters is the answer to “Part of Fermat's copy of "Arithmetica" where he wrote his Last Theorem”?

7 letters: MARGINS.

When did this clue appear?

Most recently in the New York Times crossword on July 31, 2026 (a Friday puzzle), at 9-Down.

Can “Part of Fermat's copy of "Arithmetica" where he wrote his Last Theorem” have a different answer?

Yes — New York Times sometimes reuses a clue with a different solution to fit the grid. The answers we've recorded for each date it appeared are listed above when available.

Where can I find the rest of this day's NYT Crossword answers?

The full grid for July 31, 2026 is on the NYT Crossword answers page, with every clue and answer from that puzzle.

New York Times Crossword is published by The New York Times; WordHint is an independent site and is not affiliated with or endorsed by the publisher.

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