P-1 found a factor in stage #2, B1=[B]565000[/B], B2=11300000, E=12.
M63002441 has a factor: 953932238319893668783144584783757609
119.52 Bits, k = 7570597449707493625390995444 = 2 * 2 * 3 * 13 * 17 * 97 * 3617 * [B]538309 * 553591[/B] * 27303337
Two factors of k relative close to B1 and biggest factor is bigger than B2.

62,169,979 has a factor 226428072746995453563084311
87.5 bits
[I][B][FONT="Lucida Sans Unicode"]k[/FONT][/B][/I] = 1821040286558528945 = 5 × 7[SUP]2[/SUP] × 13 × 53 × 139 × 36307 × 2137613

This is my largest P-1 factor to date.:fusion:

That would take about [URL="http://www.mersenne.ca/credit.php?worktype=TF&exponent=62%2C169%2C979&f_exponent=&b1=&b2=&numcurves=&factor=&frombits=74&tobits=88&submitbutton=Calculate"]1,000,000 GHZ-days[/URL] to find by TF.

P-1 found a factor in stage #2, B1=555000, B2=10128750.
UID: Jwb52z/Clay, M63213691 has a factor: 52307699147199830633280367

85.435 bits.

My personal record when factoring numbers using p-1 factorization method with B1 = 1E8, B2 = 2E9:

P-1 found a factor in stage #1, B1=100000000.
M155593 has a factor: 4247323922446492583452740413013704916736271 (43 digits, 142 bits)
k = 5 × 11 × 263 × 32029 × 8985259 × 9974369 × 12474779 × 26350243

Other numbers I factored in these months:

P-1 found a factor in stage #2, B1=100000000, B2=2000000000.
M102679 has a factor: 2744975274947255820412194963218834106959 (40 digits, 132 bits)
k = 71 × 379 × 587 × 49613 × 3386321 × 9968291 × 505297129

P-1 found a factor in stage #1, B1=100000000.
M108037 has a factor: 2659318887552342437437656530777 (31 digits, 102 bits)
k = 2[SUP]2[/SUP] × 31 × 53 × 541 × 137519 × 306253 × 82192091

P-1 found a factor in stage #2, B1=100000000, B2=2000000000.
M117389 has a factor: 25749024821993900865427892170493479 (35 digits, 115 bits)
k = 3 × 11 × 367 × 523 × 2601479 × 34033411 × 195567143

P-1 found a factor in stage #2, B1=100000000, B2=2000000000.
M135589 has a factor: 105826292535683576686158235284991 (33 digits, 107 bits)
k = 3 × 5 × 653 × 2794747 × 84185609 × 169337963

P-1 found a factor in stage #2, B1=100000000, B2=2000000000.
M136541 has a factor: 537463051681721014332364070098936513 (36 digits, 119 bits)
k = 2[SUP]5[/SUP] × 3[SUP]3[/SUP] × 401 × 419 × 816163 × 46676789 × 355881593

P-1 found a factor in stage #2, B1=100000000, B2=2000000000.
M139297 has a factor: 9613076954753953947405277318203433 (34 digits, 113 bits)
k = 2[SUP]2[/SUP] × 3[SUP]3[/SUP] × 43133 × 1949777 × 4577627 × 829911713

P-1 found a factor in stage #2, B1=100000000, B2=2000000000.
M152837 has a factor: 450388871063681619598608095357068201 (36 digits, 119 bits)
k = 2[SUP]2[/SUP] × 3 × 5[SUP]2[/SUP] × 11 × 1997 × 30107141 × 67191323 × 110523451

[QUOTE=Uncwilly;341683]87.5 bits
This is my largest P-1 factor to date.:fusion:[/QUOTE]
Just improved my best:
[URL="http://www.mersenne.ca/exponent/62364539"]62,364,539[/URL] has a factor of 47534549460523374611238927191
95.26 bits

77,193,886 GHz-days equivalent:showoff:

P-1 found a factor in stage #2, B1=555000, B2=10128750.
UID: Jwb52z/Clay, M63291077 has a factor: 17783016602757827209035241

83.879 bits.

P-1 found a factor in stage #1, B1=555000.
UID: Jwb52z/Clay, M63329501 has a factor: 207464635789020822879967361

87.423 bits.

P-1 found a factor in stage #2, B1=560000, B2=10220000.
UID: Jwb52z/Clay, M63696319 has a factor: 4395293756140552304660737

81.862 bits.

P-1 found a factor in stage #1, B1=570000.
UID: Jwb52z/Clay, M64148143 has a factor: 29021320685309832966743

74.620 bits.

Finally I found a factor worth mentioning.

P-1 found a factor in stage #2, B1=900000, B2=18675000.
UID: Axelsson/Sheep, M61837247 has a factor: 75632258275165820527461039919

log(f)/log(2)=95.93 => 96 bit !

75632258275165820527461039919-1 = 2 · 3 · 179 · 293 · 2657 · 245039 · 5969779 · 61837247

:cool:

Göran

P-1 found a factor in stage #2, B1=575000, B2=10350000.
UID: Jwb52z/Clay, M64203229 has a factor: 1575354354539556339164152433

90.348 bits.