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mau
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74 votes

Books on Number Theory for Layman

69 votes

Compass-and-straightedge construction of the square root of a given line?

48 votes

Conjectures that have been disproved with extremely large counterexamples?

46 votes

Is $0$ a natural number?

45 votes

Why is $1$ not a prime number?

43 votes

One question to know if the number is 1, 2 or 3

42 votes

How does the wheel paradox work?

30 votes

Why do the French count so strangely?

21 votes
Accepted

What are NP-complete problems and why are they so important?

19 votes

What is the Riemann-Zeta function?

15 votes

Best Maths Books for Non-Mathematicians

12 votes

Why is the decimal representation of $\frac17$ "cyclical"?

10 votes

What is the single most influential book every mathematician should read?

10 votes

Sum of the alternating harmonic series $\sum_{k=1}^{\infty}\frac{(-1)^{k+1}}{k} = \frac{1}{1} - \frac{1}{2} + \cdots $

10 votes

Why does Benford's Law (or Zipf's Law) hold?

9 votes

A definition of Conway base-$13$ function

9 votes
Accepted

Need faster division technique for $4$ digit numbers.

9 votes

What is a Markov Chain?

9 votes

What are Your Favourite Maths Puzzles?

8 votes
Accepted

Can there be generalization of Monty Hall Problem?

7 votes

Applications of the Fibonacci sequence

7 votes

Prove that $(n-1)! \equiv -1 \pmod{n}$ iff $n$ is prime [Wilson's Theorem]

6 votes

What is the Direction of a Zero (Null) Vector?

6 votes

Is it possible that two density functions that have the same mean and variance, but different distributions?

6 votes
Accepted

Length of hypotenuse using one side length and angle

5 votes
Accepted

Is MDCDXXXIV a correct roman numeral?

5 votes
Accepted

Rules of Roman Numerals

5 votes
Accepted

Prime satisfying a given condition

5 votes

Division by imaginary number

5 votes

Find all positive integers $a, b, c$ such that $1/a + 1/b + 1/c = 4/3999$