I've just added those factors to factordb as well. So it now knows 10^248*49-31 is partly factored and that 17*10^291-53 is fully factored.

Chris

Fib(1301) Factored
 

Reported here: [url]http://www.mersenneforum.org/showpost.php?p=472218&postcount=2279[/url]

147^53+53^147 cofactor has another 20 days to go.

13_2_828_m factors reported here: [url]http://www.mersenneforum.org/showpost.php?p=472130&postcount=2276[/url]

Others reported [url=http://www.mersenneforum.org/showpost.php?p=472304&postcount=2286]here[/url], reposted for convenience.

Reserving Phi_13(Phi_5(Phi_13(17)/212057)/41*31*1708293108577921) for postprocessing.

What’s the name of the NFS data file?

[QUOTE=swellman;472401]Reserving Phi_13(Phi_5(Phi_13(17)/212057)/41*31*1708293108577921) for postprocessing.

What’s the name of the NFS data file?[/QUOTE]

I know it is a bit cumbersome but this might lend a [url=http://www.mersenneforum.org/showpost.php?p=472219&postcount=1249]clue[/url].

[QUOTE=RichD;472403]I know it is a bit cumbersome but this might lend a [url=http://www.mersenneforum.org/showpost.php?p=472219&postcount=1249]clue[/url].[/QUOTE]

Many thanks! Sorry for the dumb question over nomenclature that you’d clarified in your original post.

Should be factored by midweek.

I'll take 6867^67-1 (15e) next.

Reserving C200 from 135^88+88^135 (15e).

Phi_17(5366319547249)
 

[code]matrix is 11715858 x 11716083 (5247.2 MB) with weight 1349911266 (115.22/col)
sparse part has weight 1258349627 (107.40/col)
using block size 8192 and superblock size 786432 for processor cache size 8192 kB
commencing Lanczos iteration (8 threads)
memory use: 4461.7 MB
linear algebra at 0.0%, ETA 170h55m716083 dimensions (0.0%, ETA 170h55m)
checkpointing every 70000 dimensions16083 dimensions (0.0%, ETA 176h13m)
^Znear algebra completed 750716 of 11716083 dimensions (6.4%, ETA 128h40m)
[1]+ Stopped nice -n 19 ./msieve -t 8 -v -nc "target_density=120"
bill@Gravemind ~/nfsathome $ fg
nice -n 19 ./msieve -t 8 -v -nc "target_density=120"
linear algebra completed 1934473 of 11716083 dimensions (16.5%, ETA 122h18m)
linear algebra completed 2270066 of 11716083 dimensions (19.4%, ETA 119h44m)
linear algebra completed 7413001 of 11716083 dimensions (63.3%, ETA 55h31m)
linear algebra completed 11715856 of 11716083 dimensions (100.0%, ETA 0h 0m)
lanczos halted after 185277 iterations (dim = 11715856)
recovered 31 nontrivial dependencies
BLanczosTime: 542055

commencing square root phase
handling dependencies 1 to 64
reading relations for dependency 1
read 5858094 cycles
cycles contain 19572722 unique relations
read 19572722 relations
multiplying 19572722 relations
multiply complete, coefficients have about 558.52 million bits
initial square root is modulo 102559
GCD is N, no factor found
reading relations for dependency 2
read 5860071 cycles
cycles contain 19580964 unique relations
read 19580964 relations
multiplying 19580964 relations
multiply complete, coefficients have about 558.75 million bits
initial square root is modulo 103177
sqrtTime: 4101
p90 factor: 381475207938506558696353205609056845268892924407587218597064456424792097904291059618648069
p115 factor: 1239818638545877679488938441425847441840256093576211971283712619915788114238844779543292151930793423935492252512029
elapsed time 153:14:35
[/code]


[url]https://pastebin.com/nKY3JvWX[/url]

[QUOTE=swellman;472277]Reserving C163_636xx487_11 aka Phi_11(Phi_47(7)/13722816749522711)) for postprocessing.[/QUOTE]

[code]
p54 factor: 741207571058904885004584283677091501061192032631204587
p109 factor: 1457760428112017864432310317968177327722945809643137425759132598697446375685699430616015771117132708788258841
[/code]

120503535 raw relations / 105683470 unique relations

I'll take 130^99+99^135 C215 cofactor (15e) next.

[QUOTE=RichD;472532]I'll take 130^99+99^135 C215 cofactor (15e) next.[/QUOTE]

It’s mislabeled in NFS@Home. Should be [url=http://www.mersenneforum.org/showpost.php?p=471958&postcount=1242]130^99+99^130[/url].