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812
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location Madrid, Spain
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1d
awarded  Caucus
Dec
5
answered Upper limit for the Divisor function
Nov
8
awarded  Yearling
Oct
21
comment Proof of $p_n<n^2$ by Elementary Means
The statement is not true for $p_1=2$, so you need an exception for that case.
Sep
26
revised Infinitely many primes congruent to 1 mod prime
The proof was incomplete
Sep
26
comment Infinitely many primes congruent to 1 mod prime
You are right the proof is incomplete, let me think if I can find a way to patch it otherwise I will remove it.
Sep
5
comment Number of pairs $(i, j)$ where $1\leq i < j \leq N$ such that $i|j$
Thanks for your comments, I've edited the answer with your sugestions.
Sep
5
revised Number of pairs $(i, j)$ where $1\leq i < j \leq N$ such that $i|j$
added 148 characters in body
Sep
5
revised Number of pairs $(i, j)$ where $1\leq i < j \leq N$ such that $i|j$
Improved the image and hopefully the explanation
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
12
comment Euler's Refutation of Fermat's Conjecture
Fermat statement was about the integers $2^{2^n}+1$.
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
6
revised Comparing sums of surds without any aids
added 53 characters in body
Apr
5
answered Comparing sums of surds without any aids
Mar
31
revised Algorithm to find representation of an element of field extension $\mathbb{Q}(q)$ in the form $\sum a_i q^i$
added 125 characters in body
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
31
comment quadratic residues and prime divisor
As far as I know, we don't know if there are infinitely many integers $n$ such that $n^2+1$ prime, it is an open problem.