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Hard Math Trivia Questions

The hard questions from our math set, 14 of them, each with the answer and an explanation below the game.

14questions
3min to read
5game modes
8answers explained
Multiple choice 1/14 Score 0

Keys 1-4 pick an answer, Enter moves on. Nothing is saved to an account.

The hard band is named results and specialist vocabulary, from Wiles and Euclid to topology, symmetric matrices and Goldbach's conjecture. Each has a single settled answer, so the round stays fair rather than becoming guesswork.

14 hard math trivia questions with answers

  1. Who published a proof of Fermat's Last Theorem in the 1990s?

    Answer: Andrew Wiles The problem had stood unsolved for more than three centuries.Why?

  2. Roughly what is the value of the golden ratio?

    Answer: 1.618 It is the positive solution of x squared equals x plus one.

  3. Which branch of mathematics studies properties unchanged by stretching and bending?

    Answer: Topology It is why a mug and a doughnut are treated as the same shape.Why?

  4. Which number base does hexadecimal use?

    Answer: Sixteen The extra six digits are written as the letters A to F.Why?

  5. Who wrote the Elements, the foundational text of classical geometry?

    Answer: Euclid It set out geometry from a handful of postulates and stayed a textbook for millennia.Why?

  6. What does the fundamental theorem of algebra guarantee about a non-constant polynomial?

    Answer: It has at least one complex root Allowing complex numbers is what makes the statement come out clean.Why?

  7. A number that cannot be written as a ratio of two integers is called what?

    Answer: Irrational The square root of two was the classic first example.

  8. Which mathematician introduced the letter i for the square root of minus one?

    Answer: Leonhard Euler He also gave the identity that ties together e, i, pi, one and zero.Why?

  9. What is the derivative of sin x with respect to x?

    Answer: cos x Differentiating four times brings you back to where you started.Why?

  10. Which conjecture proposes that every even number above two is the sum of two primes?

    Answer: Goldbach's conjecture It has been checked to enormous values but never proved in general.

  11. How many faces does a regular dodecahedron have?

    Answer: Twelve Each face is a regular pentagon, and it is one of the five Platonic solids.Why?

  12. The recurring decimal 0.999... is equal to what?

    Answer: Exactly 1 One third is 0.333..., and three times each side gives the result.

  13. A square matrix that equals its own transpose is described as what?

    Answer: Symmetric Reflecting it across the leading diagonal changes nothing.

  14. Rolling two fair six-sided dice, what is the probability the total is seven?

    Answer: 1 in 6 Six of the thirty-six outcomes give seven, the most of any total.

Answer key

  1. Andrew Wiles
  2. 1.618
  3. Topology
  4. Sixteen
  5. Euclid
  6. It has at least one complex root
  7. Irrational
  8. Leonhard Euler
  9. cos x
  10. Goldbach's conjecture
  11. Twelve
  12. Exactly 1
  13. Symmetric
  14. 1 in 6

How to play

  1. Pick a mode: multiple choice, true or false, a 60-second sprint, or the daily quiz.
  2. Answer with a tap, or press 1 to 4 on a keyboard. The right answer appears straight away with a line explaining it.
  3. Finish the round to see your score, copy the result grid, and step up a difficulty.
  4. Hosting a night? The full math list and a separate answer key are printed below, and the print layout drops the game and keeps the paper.

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