S663
 

Sierp Base = 663
Conjectured k = 10042
Covering Set = 5, 83, 113
Trivial Factors = k == 1 mod 2(2) and k == 330 mod (331)

Found Primes: 4927k's - File emailed

Remaining: 73k's - Tested to n=25K - File emailed

Trivial Factor Eliminations: 15k's

MOB Eliminations: 5k's - File emailed

Base Released

R771
 

R771 taken to n=10k
124 k removed, 157 left, will take the remaining to n=25k

S523
 

S523 reserved as new to n=25K

S621
 

S621 reserved as new to n=25K

I'll be away for the 2 next week, preventing me from working on R771. I'll resume working when I get back.

R871
 

Reserving R871 as new to n=25K

S523
 

Sierp Base = 523
Conjectured k = 10872
Covering Set = 7, 13, 43, 131
Trivial Factors = k == 1 mod 2(2) and k == 2 mod 3(3) and k == 28 mod 29(29)

Found Primes: 3428k's - File emailed

Remaining: 67k's - Tested to n=25K - File emailed

Trivial Factor Eliminations: 1937k's

MOB Eliminations: 3k's - File emailed

Base Released

R892
 

Reserving R892 to n=100K

Back from my 2 week trip, resuming work on R771 (atm at n=18k)

S621
 

Sierp Base = 621
Conjectured k = 19592
Covering Set = 29, 61, 311
Trivial Factors = k == 1 mod 2(2) and k == 4 mod 5(5) and 30 mod 31(31)

Found Primes: 7518k's - File emailed

Remaining: 59k's - Tested to n=25K - File emailed

Trivial Factor Eliminations: 2212k's

MOB Eliminations: 6k's - File emailed

Base Released

R892
 

R892 tested n=50K-100K - Nothing found

Results emailed