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Mathematics
John Omielan's user avatar
John Omielan's user avatar
John Omielan's user avatar
John Omielan
  • Member for 5 years, 9 months
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96
Do most numbers have exactly $3$ prime factors?
Feb 12, 2020
20
Is $\frac{1}{\alpha} \in \mathbb{Q}[\alpha]$ for irrational $\alpha$?
Dec 4, 2019
15
Limit calculation using derivative
Jan 15, 2020
13
How to compute $\lim\limits_{n\rightarrow \infty} \{(2+\sqrt{3})^{n}\}$, where $\{x\}$ is the fractional part of $x$?
May 16, 2020
13
When is $\lfloor x^n\rfloor$ a perfect square for all integers $n\geq 1$?
Mar 29, 2023
13
It is impossible for $(x-1)^2+x^2+(x+1)^2$ to be a perfect square
Jul 16, 2019
12
Max product of $20$ numbers with mean $12$ if $n$-th number is $\frac{n}2$ or $2n$?
Feb 5, 2019
12
Find all primes $m$ and $l$ such that $2m-1, 2l-1, 2ml-1$ are perfect squares
Jan 11, 2022
12
Prove that there is no 333 consecutive prime numbers such that sum of their squares is also a square.
Oct 31, 2020
11
Prove that if we decrease by 7 the sum of squares of any three natural numbers, then the result cannot be divisible by 8.
Mar 20, 2020
Top Meta posts
4
22
24
Is there an appropriate stackexchange site related to speculative mathematics
18
I have a question on how to study maths, is MSE the right place for it?
18
Should we discourage full solutions to questions that explicitly ask for a hint?
16
How to respond to nagging followup questions after answering a question
11
Are `math.meta.stackexchange.com` and `meta.math.stackexchange.com` the same website?
Top network posts
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353
Some changes to the profile while we make it responsive
165
A very recent post asking people to go "on strike" was just deleted
101
Has there been any discussion regarding the original stated reasons for the question up votes being set at +5 from +10 earlier?
79
The company’s commitment to rebuilding the relationship with you, our community
74
The company appears to have been particularly reticent, even somewhat secretive, regarding communications during the past several months