# Address

Dr. habil. Andreas Enge (円家)

Research Director

CANARI team (formerly LFANT)

INRIA & IMB

200, avenue de la Vieille Tour

33405 Talence cedex

France

Phone: +33 5 4000 61 12

E-Mail: andreas.enge@inria.fr

Office: 371, 3rd floor of the IMB math building

GPG key

## News

The slides and example files for my Guix packaging tutorial at the First Workshop on Reproducible Software Environments for Research and High-Performance Computing in Montpellier are online.

In May 2023 I finished another ECPP record, this time for a *repunit*, the number consisting of 86453 digits 1. Like all prime repunits, it is a*unique* prime number, a prime *p* for which the decimal fraction *1/p* is the only one with this period. This has been the topic of a note in the science pages of the
Dutch newspaper NRC.

On May 5, 2022 I have announced a new record primality proof for a number with 50000 digits using the fastECPP algorithm implemented in CM.