/in/foo.c: In function 'main':
/in/foo.c:6:13: error: expected '=', ',', ';', 'asm' or '__attribute__' before '==' token
    6 |   int divisr==2;
      |             ^~
/in/foo.c:6:13: error: expected expression before '==' token
/in/foo.c:8:20: error: 'divisor' undeclared (first use in this function)
    8 |          while(n % divisor==0){
      |                    ^~~~~~~
/in/foo.c:8:20: note: each undeclared identifier is reported only once for each function it appears in