**edmund@otc.otca.oz (Edmund Ting)** (08/08/90)

```
I would like to know if there are any public domain software packages
in either executable or source code which do either of the following
- perform arbitrary precision arithmetic.
- factorise large numbers.
- test for primality.
I know that the first of these was asked for before in sci.crypt, but I have
lost that particular list. I am particularly (but not exclusively) interested
in packages which run on IBM compatibles. If they are source code, please
say what language they are written in.
-+-= =-+-= =-+-= =-+-= =-+-= =-+-= =-+-= =-+-= =-+-= =-+-= =-+-= =-+-= =-+-= =-
Edmund Ting
Services Enhancement R&D
|||| OTC ||
ACSnet: edmund@otc.otca.oz
UUCP: {uunet,mcvax}!otc.oz!edmund
Phone: (02) 287 4301
Fax: (02) 287 4990
Snail: OTC Development Unit,
GPO Box 7000, Sydney 2001, Australia
-+-= =-+-= =-+-= =-+-= =-+-= =-+-= =-+-= =-+-= =-+-= =-+-= =-+-= =-+-= =-+-= =-
```

**herve@prl.dec.com (Jean-Claude Herve)** (08/11/90)

> I would like to know if there are any public domain software packages > in either executable or source code which do either of the following > > - perform arbitrary precision arithmetic. > - factorise large numbers. > - test for primality. > For the arbitrary precision arithmetic, you can use the bignum library developped jointly by INRIA and Digital-PRL. This library contains C sources and assembler sources for VAX/ULTRIX, VAX/VMS, MIPS, 68020, NS and Pyramid machine. Note the next version will contain a C++ interface. To obtain this package, and/or the PRL report #2 "Bignum: a portable and efficient package for arbitrary precision arithmetic", send your request to: librarian@decprl.dec.com or Digital-PRL Attn librarian 85 Av Victor Hugo 92500 Rueil-Malmaison, FRANCE The package is sent by electronic mail. --- Jean-Claude Herve. Digital Paris Research Lab - 85 Av Victor Hugo - 92500 Rueil Malmaison, FRANCE - - +33 (1) 47 14 28 11 - Fax: +33 (1) 47 14 28 99 - - herve@decprl.dec.com