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Derak
  • Member for 7 years, 7 months
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question
12
Why do all Giuga numbers have exactly one odd prime factor which is congruent to 1 (mod 4) ?
Aug 17, 2017
question
11
How can you verify that a 3 by 3 unimodular matrix generates an infinite number of Fermat near misses?
Jan 7, 2020
question
6
Minimal degree faithful permutation representations of some finite simple groups
Oct 29, 2021
question
4
Why seven out of eight Primary pseudoperfect numbers only have odd prime factors which are congruent to $3 \pmod{4}$?
Aug 17, 2017
question
4
Giuga numbers, when reduced modulo 288, form something resembling an arithmetic progression?
Sep 16, 2017
question
3
Given a large prime, how can I find two perfect squares that add up to that prime?
Mar 16, 2017
question
2
Can 422215686281216 be expressed as the sum or difference of two fifth powers?
Apr 5, 2017
question
2
Why is this expression an integer? [closed]
Jun 26, 2017
question
2
Can anyone help me solve this Pell equation?
Jan 3, 2020
question
1
Diophantine Equations - 4th Powers / Computational Number Theory
Mar 12, 2017