The Algorithmic Number Theory Symposium (ANTS) is the premier international forum for the presentation of new research in computational number theory and its applications, devoted to algorithmic aspects of number theory and related fields, including elementary number theory, algebraic number theory, analytic number theory, the geometry of numbers, arithmetic geometry, finite fields, cryptography, and coding theory.

Symposia

Each symposium consists of several invited talks, presenting results of current interest to a broad audience, together with contributed talks chosen through a competitive submission and review process.

The site of the symposium typically rotates between North America, Australasia, and Europe. During the business meeting held at each symposium, bids to host the next symposium are presented; the site chosen by the steering committee is announced shortly thereafter.

• ANTS XVII, University of Groningen, Netherlands, July 6 – 10, 2026
• ANTS XVI, Massachusetts Institute of Technology, United States, July 15 – 19, 2024 (RNT, ANTS XVI)
• ANTS XV, University of Bristol, United Kingdom, August 8 – 12, 2022 (RNT, ANTS XV)
• ANTS XIV, University of Auckland, New Zealand (moved online), June 30 – July 4, 2020 (OBS 4, MR4235101)
• ANTS XIII, University of Wisconson-Madison, United States, July 16 – 20, 2018 (OBS 2, MR3951999)
• ANTS XII, Technische Universität Kaiserslautern, Germany, August 29 – September 2, 2016 (JCM 19A, MR3540942–MR3540967)
• ANTS XI, Hotel Hyundai, Gyeongju, Korea, August 7 – 11, 2014 (JCM 17A, MR3240793–MR3240818)
• ANTS X, University of California, San Diego, United States, July 9 – 13, 2012 (OBS 1, MR3207404)
• ANTS IX, INRIA, Nancy, France, July 19 – 23, 2010 (LNCS 6197, MR2766433)
• ANTS VIII, Banff Centre, Canada, May 17 – 22, 2008 (LNCS 5011, MR2467865)
• ANTS VII, Technische Universität Berlin, Germany, July 23 – 28, 2006 (LNCS 4076, MR2281142)
• ANTS VI, University of Vermont, United States, June 13 – 18, 2004 (LNCS 3076, MR21373436)
• ANTS V, University of Sydney, Australia, July 7 – 12, 2002 (LNCS 2369, MR2041068)
• ANTS IV, Universiteit Leiden, Netherlands, July 2 – 7, 2000 (LNCS 1838, MR1850596)
• ANTS III, Reed College, United States, June 21 – 25, 1998 (LNCS 1423, MR1726058)
• ANTS II, Université de Bordeaux, Talence, France, May 18 – 23, 1996 (LNCS 1122, MR1446492)
• ANTS I, Cornell University, United States, May 6 – 9, 1994 (LNCS 877, MR1322704)

Selfridge Prize

Since ANTS VII, the Selfridge Prize has been awarded to the best paper presented at each symposium, as judged by the program committee. The prize is funded by the Number Theory Foundation.

• ANTS VII, Computation of locally free class groups, by Werner Bley and Robert Boltie.
• ANTS VIII, Computing Hilbert class polynomials, by Juliana Belding, Reinier Bröker, Andreas Enge, and Kristin Lauter.
• ANTS IX, Computing automorphic forms on Shimura curves over fields with arbitrary class number, by John Voight.
• ANTS X, On the evaluation of modular polynomials, by Andrew Sutherland.
• ANTS XI, Minimal models of 6-coverings of elliptic curves, by Tom Fisher.
• ANTS XII, Computing canonical heights on elliptic curves in quasi-linear time, by Jan Steffen Müller and Michael Stoll.
• ANTS XIII, A database of Belyi maps, by Michael Musty, Sam Schiavone, Jeroen Sijsling, and John Voight.
• ANTS XIV, Supersingular curves with small non-integer endomorphisms, by Jonathan Love and Dan Boneh.
• ANTS XV, Summing mu(n): a faster elementary algorithm, by Harald Helfgott and Lola Thompson.
• ANTS XVI, Fast square-free decomposition of integers using class groups, by Erik Mulder.

Steering Committee

The ANTS steering committee consists of the organizers of the five most recent symposia and one member at large. It is led by a Chair and Vice Chair who are elected by the committee to four year terms; after each biannual symposium the Vice Chair becomes Chair and a new Vice Chair is elected.

• Jennifer Balakrishnan, Boston University (ANTS XVI)
• Andrew Sutherland, Massachusetts Institute of Technology (ANTS XVI), Vice Chair
• John Voight, Dartmouth College (ANTS XVI)
• Jonathan Bober, University of Bristol (ANTS XV)
• Andrew Booker, University of Bristol (ANTS XV)
• Min Lee, University of Bristol (ANTS XV)
• Chloe Martindale, University of Bristol (ANTS XV)
• Steven Galbraith, University of Auckland (ANTS XIV), Chair
• Eric Bach, University of Wisconson, Madison (ANTS XIII)
• Joshua Holden, Rose Hulman Institute of Technology (ANTS XIII)
• Jennifer Paulhus, Grinnell College (ANTS XIII)
• Renate Scheidler, University of Calgary (ANTS XIII)
• Andrew Shallue, Illinois Wesleyan University (ANTS XIII)
• Claus Fieker, Technische Universität Kaiserslautern (ANTS XII)
• Tommy Hofmann, Saarland University (ANTS XII)
• Benjamin Smith, Inria and École polytechnique (member at large)