Question

How many non prime numbers less than 200 not divisible by 2,3,4,7,8,9,12?

Answer 1

Answer:

#include < stdio.h>

int main ( )

{

int i, j, x ;

for ( i = 1, i<= 200 ; i++ )

if ( i % 2 =! 0 && i % 3 =! 0 && i % 4 =! 0 && i % 7 =! 0 && i % 8 =! 0 && i%9=!0 && i % 12 =! 0 )

{

   x = i / 2;

   for ( j=2; j <= x ; j++ )  

     {

        if ( i % j == 0  ) // condition for checking non prime numbers

          {

             printf ( "%d ", i ) // it prints non prime numbers which are not                           .                                          divisible by 2,3,4,7,8,9,12 //

return 0 ;

} // end of main

         

Step-by-step explanation:

prime numbers are those numbers which are only divisible by itself and 1 but not other numbers.

here main() is the function. and printf is used for print a message.

above program prints the all non prime numbers which are not divisible by 2,3,4,7,8,9,12