Carmichael number question

[Max Alekseyev]

It is an open question.
See http://home.att.net/~numericana/answer/modular.htm#carmdiv

Max

On 6/16/07, David Wilson <davidwwilson at comcast.net> wrote:
>
>
> Does every odd prime divide some Carmichael number?




Dear Seqfans,  could someone look at the pair A087582, A087583
and determine when they first differ?
(I'm assuming they really are different)

If you are going to look into this, please post a reply here
to avoid duplication of efforts!

A087581 is also of the same type.

I'm just revising these entries - wait 5 minutes
before looking at them.

Thanks

Neil