Taking R893

S1027 results
 

S1027 complete to 25K.
152 primes found, 446 remain.
primes emailed.
base released.

R710 completed to n=100000 and released. No primes found. e-mail with residues sent to Gary.

R616
 

Just 43 k values remain for R616 at n=25k, so I will continue to n=50k. Will send all the results once I get to n=50k

R893 completed to n=100000 and released. 134*893^67840-1 is prime.

S871, S667
 

I would like to start the search on S871 and S667. They are listed in the condensed table of conjectures as not started, although they are not listed on the reservations page. Is there a reason for this? They have a fairly small ck (compared with some I have searched), and over 2/3 of candidates are removed from b-1 factorization.

Gary normally doesn't list a base until it is started.
You should see a "Just started" reservation pop in the near future. Have fun.

Reserving R830 and S830 to n=50K.

S988
 

1540*988^84185+1 is prime!
S988 now has 8 k's to go.

[QUOTE=unconnected;370463]Reserving R830 and S830 to n=50K.[/QUOTE]
Primes:
188*830^25418-1
197*830^27370-1
269*830^30552-1
53*830^31194-1
180*830^35747+1
61*830^36578+1
64*830^41986+1
226*830^44351-1

Results attached.

Mark has completed the following 18 bases to n=100K. 10 primes were found for n=50K-100K shown [URL="http://www.mersenneforum.org/showpost.php?p=367612&postcount=1763"]here[/URL]. The bases are released.

Bases:
[code]
R712
R747
R753
S507
S536
S564
S634
S716
S746
S761
S788
S789
S811
S878
S942
S945
S980
S1009
[/code]