| Aliquot: A DOS tool to compute aliquot chains with small starting numbers, by Ivo Düntsch. |
| apfloat: High-performance arbitrary precision arithmetic package for C++ and Java. |
| ARIBAS: An interactive interpreter for big integer and multi-precision floating point arithmetic with a Pascal/Modula like syntax. It has several builtin functions for algorithmic number theory. |
| BIG_INT: A library of functions to handle arbitrary length integers, written on ANSI C99. |
| CALC: A calculator program for doing arbitrary precision integer arithmetic, written in ANSI C and Yacc, with a number of built-in functions for number theory, by Keith Matthews. |
| CLN - Class Library for Numbers: C++ library by Bruno Haible. |
| ECMNET: Elliptic curve factoring software. |
| Encyclopedia of Integer Sequences Seeker: EIS-Seeker is a libguile-based scheme interpreter devoted to the study of the Encyclopedia of Integer Sequences database. It is intended to help find new relations between sequences. C/Scheme, Posix. |
| Factorizer: A Windows program to find all factors of any positive integer less than 2^31 - 1; decompose numbers into their prime constituents; find prime numbersand pairs of primes; and to plot Erdos-Kac and Palmen Color histograms. Down load free demo, order full version online. |
| FTP Sites, Calculator Programs and Archives: In the Number Theory Web. |
| Galois: An algebra/number theory package by R. Lidl, R. W. Matthews and R. Wells. |
| giantint: Library of routines for large integer arithmetic and number theory. |
| GIMPS FAQ list: About the Mersenne Prime Freeware. |
| GNU MP Home Page: Free library for arbitrary precision arithmetic. |
| GNUBC: Supports arbitrary precision integer arithmetic calculations with interactive execution: it is a superior version of the basic bc program which comes with the UNIX operating system. Keith Matthews has written several number-theoretic programs. |
| HiPiLib - High Performance Libraries: Home of PIOLOGIE, a library for arbitrary precision arithmetic, operating on natural, integer and rational numbers. |
| Implementations of Extended LLL: By Wilberd van der Kallen. |
| Java PHASER Project: An application for numerically and graphically analyzing dynamical systems. |
| Jim Howell Software: Large integer arithmetic. |
| KANT / KASH: KANT is a software package for sophisticated computations in number fields and in global function fields. With KASH you are able to use the powerful KANT V4 functions within a shell. |
| Kaprekar Series Generator: A java application for determining the Kaprekar Constants and Series for numbers in various radixes. |
| L: A C++ class library, datasets and command line program for computing zeros and values of L-functions, by Michael Rubinstein. |
| Large Number Arithmetic in BASIC: Library for large-integer arithmetic, plus some number theory modules. |
| LiDIA: C++ Library For Computational Number Theory. |
| Magma Computational Algebra System Home Page: A large, well-supported software package for computationally hard problems in algebra, number theory, geometry and combinatorics. |
| MAGMA/PARI Calculator: Web interface for short programs in either language. |
| Maple Worksheets by John Cosgrave: A selection of Maple (V.5) worksheets for teaching purposes. |
| Math Archives Software: PC/Number Theory section. |
| Math Archives Software: Mac/Number Theory section. |
| Mersenne Prime Freeware: Freeware to search for Mersenne Primes. Pointers to FreeLIP, GMP, HFloat, apfloat, CALC. |
| MIRACL: Multiprecision Integer and Rational Arithmetic C/C++ Library. |
| Multiprecision Software Directory: Fortran multiprecision software by David H. Bailey of Lawrence Berkeley Lab. |
| NTL: A Library for doing Number Theory: A high-performance, portable C++ library providing data structures and algorithms for manipulating signed, arbitrary length integers, and for vectors, matrices, and polynomials over the integers and over finite fields. |
| Number Field Sieve NET: A client/server system for NFSNET by Henrik Olsen. |
| Number-Theoretic Hacks: Algorithms implemented by David Eppstein. |
| NZMATH: Python based number theory oriented calculation system, developed at Tokyo Metropolitan University. Downloads, mailing list. |
| p-adic Arithmetic: A Mathematica package by Stany De Smedt. |
| Paul's TI-92 Number Theory Archive: Download site for number theory programs adapted from UBASIC/MALM for the TI-92. |
| SAGE: System for Arithmetic Geometry Experimentation: a framework for number theory, algebra, and geometry, initially designed for computing with elliptic curves and modular forms, by William Stein. Open source under GPL. |
| Schulenberg and Associates: Factoring programs. Windows, free download. |
| SIMATH: Computer algebra system for number theoretic applications. |
| Software Packages of Interest to Number Theory: Links maintained by John Cremona. |
| ZEN: A toolbox for computation in finite rings, by Florent Chabaud and Reynald Lercier. ANSI-C source, free download, GPL. |
Classical
