is 2 33765551 - 1
has 10164444 decimal digits
takes 39.956 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-L726BA0A4C21C5B62double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual27228.322863.8889 %46000090850001.59563.9901 %29.918365.3297 %
Target27114.158863.3803 %240000350000003.66133.8368 %17.820064.7853 %
Difference+1+14.1640+0.5086 %+220000-25915000-2.0657+0.1533%+12.0983+0.5444 %

Known prime factors (1 factor, 82.9 bits, 0.00024539% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
3376555187664350447570064265105592582.858129813297652939329
33 × 112 × 13 × 83 × 17659 × 2085367
2019-10-0717659208536731,7010.22360.3641

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2004-02-07ANONYMOUSv4_computers500000500000--0.8581.935%
2019-10-08Architects Cubedpfs46000090850001222582.8581.5964.404%


Trial Factoring results:
57585960616263646566676869707172
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2004-02-07ANONYMOUSv4_computers212680.885
2012-11-29krackerManual testing2682691.771
2013-06-18buteraManual testing26927110.62
2019-10-01Architects CubedManual testing27127214.16


ECM factoring results:
No ECM results for M33765551


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2004-03-01ANONYMOUSv4_computers726BA0A4C21C5B6239.96
2015-01-13ChuckChuck-Toshiba726BA0A4C21C5B6239.96


PRP results:
No PRP results for M33765551


CERT results:
No CERT results for M33765551


P-1 factor-bounds graph:
B1 = 460000, B2 = 9085000 (P-1 stage 2)
B1 = 500000 (P-1 stage 1)
B1 = 460000 (P-1 stage 1)
103
104
105
106
103
104
105
106
107
TF factor-bounds graph:
272
271
269
268
this exponent TF target: 71
TF double-checked to: 67
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Last modified: 2024-03-13T02:15:48+00:00