is 2 19546633 - 1
has 5884123 decimal digits
takes 12.461 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-L7FC2CCDC71ACE82Adouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual274195.730266.2162 %23000039675000.40082.2584 %196.131066.9792 %
Target2696.107863.7681 %140000200000001.12963.6160 %7.237465.0783 %
Difference+5+189.6224+2.4481 %+90000-16032500-0.7288-1.3576 %+188.8936+1.9009 %

Known prime factors (1 factor, 88.8 bits, 0.00045425% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
195466335352082911816305689086652392788.79013690549446076737843
3 × 7 × 67 × 127 × 389 × 310693 × 633931
2022-01-123106936339315,874,6250.30350.5845

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2003-08-25ANONYMOUSv4_computers2300003967500--0.4013.883%
2022-01-12axnManual testing80000080000012788.7900.7512.700%


Trial Factoring results:
575859606162636465666768697071727374
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2001-11-03Net_Forcev4_computers212580.002
2001-12-22Net_Forcev4_computers212590.002
2002-06-15Team Prime Ribv4_computers212660.382
2014-05-12NesowaManual testing2662682.294
2017-10-27ramgeisManual testing2682693.058
2019-12-05lycornManual testing2692706.117
2021-09-13SRBaseManual testing27027112.23
2021-10-03ANONYMOUSManual testing27127224.47
2021-11-19ANONYMOUSManual testing27227348.93
2022-01-11TheJudgerManual testing27327497.87


ECM factoring results:
No ECM results for M19546633


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2003-09-14ANONYMOUSv4_computers7FC2CCDC71ACE82A12.46
2007-09-28Team Prime Ribv4_computers7FC2CCDC71ACE82A12.46


PRP results:
No PRP results for M19546633


CERT results:
No CERT results for M19546633


P-1 factor-bounds graph:
B1 = 800000 (P-1 stage 1)
B1 = 230000, B2 = 3967500 (P-1 stage 2)
B1 = 230000 (P-1 stage 1)
104
105
106
104
105
106
107
TF factor-bounds graph:
274
273
272
271
270
269
268
266
259
258
this exponent TF target: 69
TF double-checked to: 67
250
260
270
280
290
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Last modified: 2024-03-13T02:15:48+00:00