# Answer to Question #23778 in C# for sheetal

Question #23778

write a program to accept a number and check whether its prime or not?

Expert's answer

# include<iostream.h>

# include<conio.h>

//calculation

int isprime(int valuex)

{

int x,j;

x=1;

for (j=2 ; j<valuex; j++)

{ if ((valuex%j)==0) x=0; }

if(x!=0) return 1;

& else return 0;

}

void main(){

int isprime(int);

int value;

//input

cout<<"Enter a number to verify whether it is prime or not "<<endl;

cin>>value;

//output

if (isprime(value)==1) cout<<"Yes the number is prime"<<endl;

else cout<<"Sorry, not a prime"<<endl;

getch();

}

# include<conio.h>

//calculation

int isprime(int valuex)

{

int x,j;

x=1;

for (j=2 ; j<valuex; j++)

{ if ((valuex%j)==0) x=0; }

if(x!=0) return 1;

& else return 0;

}

void main(){

int isprime(int);

int value;

//input

cout<<"Enter a number to verify whether it is prime or not "<<endl;

cin>>value;

//output

if (isprime(value)==1) cout<<"Yes the number is prime"<<endl;

else cout<<"Sorry, not a prime"<<endl;

getch();

}

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