About the rationality of $1.1010010001\dots$
64216
Is $0.1010010001000010000010000001 \ldots$ transcendental?
2786
The staircase paradox, or why $\pi\ne4$
19446
Number theory question from today's Pre - RMO
44573
Can $\pi$ be rational in some base radix
50555
Approximation of real number to the power of irrational
109900
Why is $e^{\pi \sqrt{163}}$ almost an integer?
90245
Computing $\int^1_0 \frac{p^2-1}{\text{ln } p}dp$
15110
About irrational logarithms
116568
Why is a repeating decimal a rational number?
45911
Prove that none of $\{11, 111, 1111,\dots \}$ is the perfect square of an integer
126074
Proof of the irrationality of $\sqrt{3}$ - logic question
13363
Why does an argument similiar to 0.999...=1 show 999...=-1?
128415
Prove that $1<\frac{1}{1001}+\frac{1}{1002}+\frac{1}{1003}+\dots+\frac{1}{3001}<\frac43$
56464
Proving the irrationality of $e^n$
11440
When is the number $11111\cdots1$ a prime number?
126199
Proof of $\pi$ not being a quadratic irrational number.
36514
Show that $45<x_{1000}<45.1$