Convert big number string to binary string (from base 10 to base 2) dec2bin.exe 1234567890123456789012345678901234567890 1110100000110010010010000001110101110000001101101111110011101110001010110010111100010111111001011011001110001111110000101011010010 Note : number provided must only contain digit(s). Dependency GMP : https://gmplib.org MPIR : https://github.com/wbhart/mpir Build with external mpir.dll