I do not quite know if this software can contribute, but i just wanted to let you know, that we developed a collection of functions (library, dll) for working with real BIG numbers. (...numbers bigger than the normal data types a programmer can handle.)
Samples were made for Visual Basic, but can be used in any language that can invoke a .DLL (such as C++, VBA in Excel, Access or whatever)
It's the only DLL available for Windows for UNLIMITED BIG NUMBERS with functions such as: +/-* Power2, Power10, MOD DIVIDE, ISPRIME, COMPARE, Xor etc...
Calculations are sometimes even faster than you are used to, cause everything was made in assembly. It's shareware and it is online on
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David