[QUOTE=cmd;452705][url]http://www.factordb.com/index.php?id=1100000000900921624[/url]

is P
not C[/QUOTE]

[CODE]? isprime(111111111111111111111111111111111111061)
1
[/CODE]

°|<
 

[QUOTE=paulunderwood;452706][CODE]? isprime(111111111111111111111111111111111111061)
1
[/CODE][/QUOTE]


thx

[QUOTE=cmd;452705][url]http://www.factordb.com/index.php?id=1100000000900921624[/url]
[/QUOTE]


fdb now works again,

but the link id=1100000000900921624
is still wrong

"status C" .. erase ..

[QUOTE=cmd;452810]fdb now works again,

.. mo__re ..

[/QUOTE]




[code]
[QUOTE=cmd;452810]fdb now works again,















but in image attachments, find

.. mo__re .. mo_er_dup#keyid ..
























[/QUOTE]
[/code]

The core on "Factoring numbers <70 digits" frequently hangs (last event >1 hour), and there's a large number of small composites without known factors (<30 digits).

Don't think this is normal behavior.

Edit: Can someone double check if the following four 39-digit numbers labelled "C" are actually prime?

111111111111111111111111111111111111061
111111111111111111111111111111111111061
111111111111111111111111111111111110957
111111111111111111111111111111111110947

[QUOTE=GeoffreyY;453016]The core on "Factoring numbers <70 digits" frequently hangs (last event >1 hour), and there's a large number of small composites without known factors (<30 digits).

Don't think this is normal behavior.

Edit: Can someone double check if the following four 39-digit numbers labelled "C" are actually prime?

111111111111111111111111111111111111061
111111111111111111111111111111111111061
111111111111111111111111111111111110957
111111111111111111111111111111111110947[/QUOTE]

There are only three distinct numbers here, and they are all prime.

I just started doing some Primo certificates in the 2400d range and seem to be getting a lot of composites from the PRP listing. Is this indicative of a problem associated with the above mentioned C vs. P issues, or is it normal?

There is also a C79 in the list of composite numbers without known factors that is prime:

(10^79-181)%(10^79-1)/9

Appears to be more of cmd's handiwork.....

[QUOTE=richs;453061]There is also a C79 in the list of composite numbers without known factors that is prime:

(10^79-181)[B][B]%[/B][/B](10^79-1)/9

Appears to be more of cmd's hand_[COLOR="DarkOrange"][i][/COLOR]_work.. [/QUOTE]

id .. times

[COLOR="Red"] [__][/COLOR] [ ] [COLOR="Green"][__] [/COLOR]

There are primes that return composite in factordb, such as:

4*143##+1
4*173##+1
4*186##+1
4*180##-1
4*228##-1
4*268##-1
4*301##-1

Also, there are composites that return prime in factordb, such as:

2^17058*210681-1 (equals (2^8529*459-1) * (2^8529*459+1))
2^22910*837225-1 (equals (2^11455*915-1) * (2^11455*915+1))

Besides, PRP 108^398*109+1 should be easy to prove by N-1. But factordb thinks 108^398*109 is 2*5*109 so N-1 is only 0.259% factored, I think that there are the same bug to some other numbers.

factordb still thinks that these two are 82 digit composites:
9699691 (id 1100000000912669113)
223092871 (id 1100000000912669114)