bash-3.2$ cd /cygdrive/e
bash-3.2$ dir
Batch           JavaDevelopment  Sun                          eclipsecpp
CppDevelopment  MSVC9            System\ Volume\ Information  jdk1.6.0_14
Curator         Perl             cygwin
Development     RECYCLER         eclipse
bash-3.2$ cd CppDevelopment/FindPrimeFactors/
bash-3.2$ dir
Debug  main.c  main.exe
bash-3.2$ gcc-4 -o cygmain -O0 -std=c99 main.c
bash-3.2$ dir
Debug  cygmain.exe  main.c  main.exe
bash-3.2$ cygmain
bash: cygmain: command not found
bash-3.2$ ./cygmain
Enter a positive integer: 49332

Prime factor:     2    2
Prime factor:     3
Prime factor:  4111
bash-3.2$