is 2 2724383 - 1
has 820122 decimal digits
takes 0.210 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual26710.906767.1642 %2550002034162901.26827.2366 %12.174869.5404 %
Target2630.585865.0794 %1400012000000.00881.7060 %0.594665.6751 %
Difference+4+10.3208+2.0848 %+241000+202216290+1.2594+5.5307%+11.5802+3.8653 %

Known prime factors (2 factors, 93.7 bits, 0.00343758% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
27243835448767722.3771
1
-112.051e-131.120e-72.279e-7
272438328576977854526154154812271.275524466968383780
22 × 5 × 23 × 47 × 45259 × 535991
2018-04-1445259535991175.480.00810.0103

1 Composite Factors:
P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2022-11-16USAFSS6917th_Scty_Sq255000203416290
skipped known factor: 5448767
skipped known factor: 2857697785452615415481
--1.39710.373%


Trial Factoring results:
5758596061626364656667
No TF results for M2724383


ECM factoring results:
Total ECM effort:0.202 GHz-days
Estimated T-Level:0.385
DigitsB1CompleteFacMiss
20110000.07792.596%
25500000.00799.291%


ECM Summary

B1B2factorcurvesGHz-days
50000500000020.202


Lucas-Lehmer results:
No L-L results for M2724383


PRP results:
dateuseridcompidcofactorsres64
2017-10-20Oliver KruseGTX-0
5448767
B1B75ECD620243D2
2017-12-05kkmrkkblmbrbkc4.xlarge
5448767
B1B75ECD620243D2
2018-04-16NetaniasWin10
5448767
2857697785452615415481
B1B75ECD620243D2


CERT results:
No CERT results for M2724383


P-1 factor-bounds graph:
B1 = 255000, B2 = 203416290 (P-1 stage 2)
B1 = 255000 (P-1 stage 1)
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102
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106
100
101
102
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104
105
106
107
108
109
TF factor-bounds graph:
this exponent TF target: 63
TF double-checked to: 67
ECM T-Level=0.38 ~= -15-bit
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JSON version of this page
Last modified: 2024-02-09T03:30:02+00:00