#!/bin/bash

numbers=( $(echo {2..100}) )
entiers_potentiel=$1


{   for num in ${numbers[@]}; do
        if (( ${numbers[num]} == entiers_potentiel )); then
            numbers[num]=1
        fi

        if (( entiers_potentiel != 1 & num % entiers_potentiel == 0)); then
                echo premier
                break
        fi
    done
} 2>/dev/null