Large factor :)
 

M205019 has a factor: 10552707023740922795963107877273
k=2[SUP]2[/SUP] * 19[SUP]2[/SUP] * 4,865,467* 8,401,457 x 436,006,979
103.06 bits :)
Found with B1=5e7, B2=1e9

first factor of the expo?

[QUOTE=firejuggler;357109]first factor of the expo?[/QUOTE]
Yup.

gratz

P-1 found a factor in stage #2, B1=575000, B2=10206250.
UID: Jwb52z/Clay, M64579639 has a factor: 49865416905886948134257

75.401 bits.

P-1 found a factor in stage #2, B1=615000, B2=11070000.
UID: Jwb52z/Clay, M68297821 has a factor: 1060840401789825146321719

79.812 bits.

P-1 found a factor in stage #2, B1=610000, B2=11132500.
UID: Jwb52z/Clay, M68161153 has a factor: 46169859819972160433177

75.289 bits.

M2001511 has a factor
 

M2001511 has a factor: 19885661711344389415428507505282354958833
k = 2[SUP]3[/SUP] × 3[SUP]3[/SUP] × 47 × 83 × 199 × 307 × 8713 × 11087 × 874543 × 1142267939
found by P-1: B1=100000000, B2=5000000000
Not that impressive, but it is my personal record at 133.869 bits ([URL="http://www.mersenne.ca/exponent.php?exponentdetails=2001511"]http://www.mersenne.ca/exponent.php?exponentdetails=2001511).[/URL]

factor for M64,357,877, 41787001570247168322240193950071

105 bits.:smile:

Nice, both of you. My personal record is 103.xx bits.

And to be on topic: nice and smooth 96 bits factor which I just found: 51545038478252187196134995119.

[QUOTE=LaurV;359361]Nice, both of you. My personal record is 103.xx bits.

And to be on topic: nice and smooth 96 bits factor which I just found: 51545038478252187196134995119.[/QUOTE]

:razz: [URL="https://www.gpu72.com/reports/largest_factors/"]^[/URL] :razz: 13