Taking C225_127_99

Fib(1301) factored
 

[code]
prp63 factor: 464757559194769853726213324625064879181539715631999236468111969
prp175 factor: 8193546379731162179523472180410007127751480250569760816583372116622037859397275686819201053586709225997727186508039084129493539555104825563023159480632525453874769217081815617
[/code]

447336938 raw relations / 349780835 unique relations

Interesting reservation on [URL="http://stdkmd.com/nrr/c.cgi?q=reserved_and_submitted"]NRR website[/URL]:
[QUOTE]NFS@Home [URL="http://stdkmd.com/nrr/c.cgi?q=54441_248"]54441_248[/URL] (c249 / 584), [URL="http://stdkmd.com/nrr/c.cgi?q=18883_291"]18883_291[/URL] (c169 / 556)[/QUOTE]That's 584 and 556 days ago!
Forgotten?

C167_4788_12505 completed - 35 hours on 6.5M matrix (TD=130).

[CODE]prp81 factor: 108245084820212828887811387291343044089098703303043861848964083476501114791928049
prp87 factor: 164776850682591236198306472638767305357148967258041266597583412403064319946059801422289
[/CODE]

[url]https://pastebin.com/4hqjQkx6[/url]

phi_5(phi_13(43609)) AKA C221_910xx371_5 factored
 

[code]
p47 factor: 21772216960834806224487967871473176857756729891
p175 factor: 4182429556161917245112740601227598656069592376981401111311120523661003885031813158680936757414863529587165418173365083289474648930625024240428689551999738035829245075739168281
[/code]


293195900 raw relations / 261966696 unique relations

C229_150_58 factored
 

[code]
prp111 factor: 115021043173117329871351074829678254557238693278336460668718279320571987842922667082383217932630922021091627853
prp119 factor: 19813231686987351304078425005299271036457163588028760723953792768712136916908876513116956741344392781446905050190752201
[/code]

Nice split!

260440648 raw relations / 199643658 unique relations

Reserving C163_636xx487_11 aka Phi_11(Phi_47(7)/13722816749522711)) for postprocessing.

[QUOTE=Batalov;472228]Interesting reservation on [URL="http://stdkmd.com/nrr/c.cgi?q=reserved_and_submitted"]NRR website[/URL]:
That's 584 and 556 days ago!
Forgotten?[/QUOTE]

Yes, that looks forgotten to me, and I'm not entirely sure that it's not my fault. I'll see if I can put in an SNFS polynomial for the bigger one today; would someone be willing to do the polynomial search for the C169?

[QUOTE=fivemack;472303]... would someone be willing to do the polynomial search for the C169?[/QUOTE]

There is one posted but not sure how good it is.

BTW:
C160_423xx767_5 phi_5(phi_47(17)) cofactor is [url=http://www.mersenneforum.org/showpost.php?p=471700&postcount=2257]done[/url].
C227_135_76 is [url=http://www.mersenneforum.org/showpost.php?p=472113&postcount=2275]done[/url].

These numbers are already cracked by ECM somewhere in May 2016. I've sent the factors to Lionel (because only he can submit them to Near-repdigit project site), but seems he forgot about that. Fortunately I didn't clean private messages, so here they are.

54441_248
Using B1=110000000, B2=776278396540, polynomial Dickson(30), sigma=809860913
Step 1 took 1134134ms
Step 2 took 299048ms
********** Factor found in step 2: 43802120335384069597226422115845628792717180855184283
Found probable prime factor of 53 digits: 43802120335384069597226422115845628792717180855184283

18883_291
Using B1=43000000, B2=240490660426, polynomial Dickson(12), sigma=4050464285
Step 1 took 239896ms
Step 2 took 71135ms
********** Factor found in step 2: 3208074107647063018326273101562135693329271942833
Found probable prime factor of 49 digits: 3208074107647063018326273101562135693329271942833

[QUOTE=unconnected;472305]These numbers are already cracked by ECM somewhere in May 2016. I've sent the factors to Lionel (because only he can submit them to Near-repdigit project site), but seems he forgot about that. Fortunately I didn't clean private messages, so here they are.

54441_248
Using B1=110000000, B2=776278396540, polynomial Dickson(30), sigma=809860913
Step 1 took 1134134ms
Step 2 took 299048ms
********** Factor found in step 2: 43802120335384069597226422115845628792717180855184283
Found probable prime factor of 53 digits: 43802120335384069597226422115845628792717180855184283[/quote]
Cofactor
[code]12429636745338862346787610397157798967438673266228138014594683957581473945519877837579203042380697665621892796222717406038384025275189360158942771356863560554226966033451078758861356640093824353627[/code]
is C197

[quote]18883_291
Using B1=43000000, B2=240490660426, polynomial Dickson(12), sigma=4050464285
Step 1 took 239896ms
Step 2 took 71135ms
********** Factor found in step 2: 3208074107647063018326273101562135693329271942833
Found probable prime factor of 49 digits: 3208074107647063018326273101562135693329271942833[/QUOTE]Dividing out this, and the factors already found and shown [url=http://stdkmd.com/nrr/c.cgi?q=18883_291]here[/url], the remaining cofactor is P120 (prime, according to Pari-GP isprime()). Congratulations, this one is done!