is 2 33646589 - 1
has 10128633 decimal digits
takes 39.815 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-LC0ACFB2229D82BF3double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual27356.851164.3836 %39000098475001.55333.5890 %58.404465.6618 %
Target27114.208863.3803 %240000350000003.66133.8350 %17.870164.7846 %
Difference+2+42.6422+1.0033 %+150000-25152500-2.1080-0.2460 %+40.5343+0.8772 %

Known prime factors (1 factor, 73.6 bits, 0.00021866% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
33646589140400653937387520542412373.572208640248700080
24 × 5 × 421 × 15289 × 405179
2020-04-201528940517977.2800.06270.0707

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2003-12-13eipiv4_computers3900009847500--1.5534.385%


Trial Factoring results:
5758596061626364656667686970717273
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2003-07-06markrv4_computers212630.029
2003-09-09markrv4_computers212640.058
2003-12-13eipiv4_computers212680.888
2012-06-03Patrik JohanssonManual testing2682705.330
2014-04-11Andrew BManual testing2702717.107
2019-12-28ANONYMOUSManual testing27127342.64
2020-04-20ANONYMOUSManual testing273274*
73.572
23
32.52


ECM factoring results:
No ECM results for M33646589


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2003-12-31eipiv4_computers0C3BAF7252DAE63339.82
2012-06-28Patrik Johanssonws001C0ACFB2229D82BF339.82
2014-09-15Preben SmeruC0ACFB2229D82BF339.82


PRP results:
No PRP results for M33646589


CERT results:
No CERT results for M33646589


P-1 factor-bounds graph:
B1 = 390000, B2 = 9847500 (P-1 stage 2)
B1 = 390000 (P-1 stage 1)
103
104
105
106
103
104
105
106
107
TF factor-bounds graph:
273
271
270
268
264
263
this exponent TF target: 71
TF double-checked to: 67
250
260
270
280
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Last modified: 2024-03-13T02:15:48+00:00