it seems just because t2 is composite.
Justin C. Walker於 2020年5月7日星期四 UTC+8上午4時34分22秒寫道：
>
>
>
> > On May 6, 2020, at 12:42 , Taylor Huang > wrote:
> >
> > for copying convenience,
>
> On May 6, 2020, at 12:42 , Taylor Huang wrote:
>
> for copying convenience,
> t2=130909372768301356681778282510862500974744695454635894969823296557102167802248279516425760724261243783327711946435277119464351117309193681
This may be more feature than bug. If you break up the latter
As the attachment shown. kronecker(-1,t2) returns 1, but mod(-1,t2).sqrt()
says the square root cannot be done.
It seems to be a bug.
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