Existence of a constant for every prime











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Prove the existence of a constant $c$$>0$,such that for every prime
number there are at most $cp^{2/3}$ positive integers $n$,for which
$n!$$+1$ is divisible by $p$.




If, for every prime $p$, the set of integers with the property is {${a_1,...,a_k}$} we have that there are at most $s$ differences between $a_i$ and $a_j$ equal to $s$, but I can't continue.










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  • This is not an original problem,I found it in Problems from the Book.
    – Kristiyan Vasilev
    Feb 18 '17 at 17:54















up vote
3
down vote

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Prove the existence of a constant $c$$>0$,such that for every prime
number there are at most $cp^{2/3}$ positive integers $n$,for which
$n!$$+1$ is divisible by $p$.




If, for every prime $p$, the set of integers with the property is {${a_1,...,a_k}$} we have that there are at most $s$ differences between $a_i$ and $a_j$ equal to $s$, but I can't continue.










share|cite|improve this question
























  • This is not an original problem,I found it in Problems from the Book.
    – Kristiyan Vasilev
    Feb 18 '17 at 17:54













up vote
3
down vote

favorite
1









up vote
3
down vote

favorite
1






1






Prove the existence of a constant $c$$>0$,such that for every prime
number there are at most $cp^{2/3}$ positive integers $n$,for which
$n!$$+1$ is divisible by $p$.




If, for every prime $p$, the set of integers with the property is {${a_1,...,a_k}$} we have that there are at most $s$ differences between $a_i$ and $a_j$ equal to $s$, but I can't continue.










share|cite|improve this question
















Prove the existence of a constant $c$$>0$,such that for every prime
number there are at most $cp^{2/3}$ positive integers $n$,for which
$n!$$+1$ is divisible by $p$.




If, for every prime $p$, the set of integers with the property is {${a_1,...,a_k}$} we have that there are at most $s$ differences between $a_i$ and $a_j$ equal to $s$, but I can't continue.







number-theory prime-numbers






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edited Nov 21 at 11:46









Flermat

1,28311129




1,28311129










asked Feb 18 '17 at 17:53









Kristiyan Vasilev

1255




1255












  • This is not an original problem,I found it in Problems from the Book.
    – Kristiyan Vasilev
    Feb 18 '17 at 17:54


















  • This is not an original problem,I found it in Problems from the Book.
    – Kristiyan Vasilev
    Feb 18 '17 at 17:54
















This is not an original problem,I found it in Problems from the Book.
– Kristiyan Vasilev
Feb 18 '17 at 17:54




This is not an original problem,I found it in Problems from the Book.
– Kristiyan Vasilev
Feb 18 '17 at 17:54















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