C191 in 2,2090M (with Sam Wagstaff)

Polynomial selection

The following polynomial is used,

n: 103287871712762386745581429739885374030790480673987647011
360418935989824021416358491479443020178331683279846475262371
215232451861348177256995341167635497930041124885277097655835
48812379427521
Y1: 23836766724512996639011
Y0: -994455730911857088254409684848009320
c5: 10619942400
c4: -109106997594668688
c3: -266668724338025053187200
c2: 379020717899264867598385513778
c1: 527475394044818511631083120615611985
c0: -234157990875580259347177871527577444598429
skew: 1752576.000
# lognorm: 58.77, alpha: -5.62 (proj: -2.66), E: 53.15, nr: 5
# MurphyE(Bf=10000000,Bg=5000000,area=1.00e+16)=1.58e-14

Sieving

Lattice sieve was done in CADO-NFS. 360M unique relations were collected.

rlim=100000000
alim=200000000
lpbr=32
lpba=32
mfbr=64
mfba=96
rlambda=2.1
alambda=3.2

Filtering and linear algebra

Filtering and linear algebra was done in CADO-NFS using 64 cores. Matrix is 39M x 39M of weight 3941664102. The calendar time was approximated two months. The factors are:

2523372254682750983461924737313514298359363853056915767767618815531110061 * 4093247499297251890469538372240408000378368534236104379861160330019109435953107142499794152124464321858069014277765861