Bad things about your favourite programming language

BigInteger, a very slow implementation that handles any amount of huge digit

actually, biginteger utilizes an array of UINT32's, treating the array as if it was a number in base 2^32 (with each element in the array being a digit). Therefore, BigInteger is limited and can only handle numbers up to (2^32)^(2^32) => 2^(32*(2^32)) => 2^((2^5)*(2^32)) => 2^(2^37)

or in a more human language, BigInteger can only count to 2^137438953472.