How to manage a very big number?

[Acacia]

I am running a code that computes a very big numbers. The program works untill it reachs its limit then all the rest turns out to be infinity. The number grows exponentially. Could u please let me know how to handle this problem?

Thanks in advance,

[Bazzy]

Use a library as GMP http://gmplib.org/ http://www.delorie.com/gnu/docs/gmp/gmp_73.html

[meepokman]

Try using a "long double" or "long int" for your variable declarations instead of just "double" or "int".

[QWERTYman]

I believe on most systems, even long long int or unsigned long long int are supported types. They're very big.

Very.

[helios]

128 bits is not that big. Have you seen the 46th Mersenne Prime? 12.8 million decimal digits.

Besides, long long is not standard.