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Dec
5
answered Upper limit for the Divisor function
Sep
5
answered Number of pairs $(i, j)$ where $1\leq i < j \leq N$ such that $i|j$
Jul
22
answered Sizes of Blocks of Consecutive Integers Divisible by at Least One Prime Less than or Equal to $r$.
Jun
1
answered Infinitely many primes congruent to 1 mod prime
May
5
answered Finding the Norm of an element in a field extension
Apr
23
answered Showing that $|f^{(n)}| \le n!n^n$ and then making this result sharper
Apr
5
answered Comparing sums of surds without any aids
Mar
31
answered Algorithm to find representation of an element of field extension $\mathbb{Q}(q)$ in the form $\sum a_i q^i$
Mar
16
answered Partial fraction decomposition of p'/p
Mar
15
answered Reciprocity problem in I&R “A Classical Introduction in Modern Number Theory”
Mar
14
asked Reducing simultaneously a pair of fractions $\frac{a^2}{b},\frac{ a^3}{c}$ using only gcds
Feb
13
answered $17$ is a quadratic residue for all primes $p$ such that $p \equiv \pm 3 \mod{8}$?
Dec
22
answered Generalizing Ramanujan's proof of Bertrand's Postulate: Can Ramanujan's approach be used to show a prime between $4x$ and $5x$ for $x \ge 3$
Jun
21
answered How prove that:$\varphi(2)+\varphi(3)+\varphi(4)+\cdots+\varphi(n)\ge\frac{n(n-1)}{4}+1$
Jan
19
answered $n +1$th Fibonacci number modulo $n$
Nov
30
answered Galois group and the Quaternion group
Nov
7
answered Cover a disk with thin rectangles
Nov
3
answered Half the rationals?
Oct
15
answered Tiling a minimal perimeter region with $n$ unit squares
Jul
19
answered Solving a polynomial modulo an integer