is 2 23775337 - 1
has 7157090 decimal digits
takes 19.284 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-LCEDB22DE504A2253double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual27240.223865.2778 %54500047877423031.28487.3420 %71.508667.8271 %
Target27010.050464.2857 %170000250000001.79103.6027 %11.841365.5724 %
Difference+2+30.1734+0.9921 %+375000+453774230+29.4939+3.7393%+59.6673+2.2547 %

Known prime factors (1 factor, 97.1 bits, 0.00040836% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
237753371685343113232173401829611570093097.0893544309620579034067592
23 × 3 × 13 × 29 × 241 × 383 × 22291 × 190385423
2022-05-03222911903854232.493e+912.22422.785

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2004-10-03curtiscv4_computers2200001045000--0.3122.550%
2022-05-03James Heinrich3930K54500047877423023097.08935.708.721%


Trial Factoring results:
57585960616263646566676869707172
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2001-09-10Net_Forcev4_computers212560.000
2003-06-23ANONYMOUSv4_computers212580.002
2003-11-16ANONYMOUSv4_computers212670.629
2016-07-07VictordeHollanderManual testing2672681.257
2018-01-27VictordeHollanderManual testing2682692.514
2018-09-10ramgeisManual testing2692705.029
2021-01-08ANONYMOUSManual testing27027230.17


ECM factoring results:
No ECM results for M23775337


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2004-10-18curtiscv4_computersCEDB22DE504A225319.28
2010-04-18TheJudgerv4_computersCEDB22DE504A225319.28


PRP results:
No PRP results for M23775337


CERT results:
No CERT results for M23775337


P-1 factor-bounds graph:
B1 = 545000, B2 = 478774230 (P-1 stage 2)
B1 = 545000 (P-1 stage 1)
B1 = 220000, B2 = 1045000 (P-1 stage 2)
B1 = 220000 (P-1 stage 1)
103
104
105
106
103
104
105
106
107
108
109
TF factor-bounds graph:
272
270
269
268
267
258
256
this exponent TF target: 70
TF double-checked to: 67
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Last modified: 2024-03-13T02:15:48+00:00