C Program to check prime number
C Program to check prime number #include<conio.h> #include<stdio.h> void main() { int p,i; clrscr(); printf("enter no. to check prime: "); scanf("%d",&p); for(i=2;i<p;i++) if(p%i==0) { printf("%d is not a prime number ",p); break; } if(i==p) printf("%d is prime number",p); getch(); } Explanation int p,i; p and i are two variables of integer type ; printf() and scanf() are predefine functions use for read and write respectively. for(i=2;i<p;i++) for loop use to check prime number count if(p%i== 0) if p % i = 0 then it means 'p' has any common factor between 1 to p which means it is not a prime...