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Is it a prime number ?
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EX08_nombre_premier.cpp
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33
EX08_nombre_premier.cpp
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// auteur : Franck ALBARET
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#include <stdio.h>
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#include <conio.h>
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int main (void)
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{
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int Nbr=0;
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int Cpt=0;
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int Test=0;
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puts("Entrez un nombre : \n");
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scanf("%i",&Nbr);
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Cpt=Nbr-1;
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if (Cpt<1)
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{
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printf("Ce nombre n'est pas valide. \n");
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return 0;
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}
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while (Cpt>1)
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{
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if (Nbr%Cpt!=0)
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Cpt=Cpt-1;
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else
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{
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Test=1;
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Cpt=Cpt-1;
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}
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}
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if (Test!=1)
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printf("Le nombre %i est un nombre premier. \n",Nbr);
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else
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printf("Le nombre %i n'est pas un nombre premier. \n",Nbr);
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return 0;
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}
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