Question

Q#1 WRITE A PROGRAM WHICH TAKES A NUMBER FROM THE USER, FIND THAT WHETHER ITS PRIME NUMBER NUMBER OR NOT? USING FUNCTION.

Answer 1

# include<iostream.h>
# include<conio.h>

//calculation
int isprime(int valuex)
{
int x,j;
x=1;
& for (j=2 ; j<valuex2; 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();
}