Thanks for catching my mistake it should indeed be False instead of True. On Wednesday, August 16, 2017 at 3:00:41 AM UTC-6, Daniel Krenn wrote: > > On 2017-08-14 18:37, Will Song wrote: > > Not sure if this is a known bug or not. > > > > SageMath version 8.0, Release Date: 2017-07-21 > > > > sage: mod(0, 17).is_primitive_root() > > True > > > > The easy fix would just be to add > > > > if self == 0: > > return True > > > > after > https://github.com/sagemath/sage/blob/master/src/sage/rings/finite_rings/integer_mod.pyx#L1586. > > > > This also fixes the issue with p^j being a primitive root mod p^k where > > p is an odd prime. > > This is now > https://trac.sagemath.org/ticket/23624 > >
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