is 2 5025547 - 1
has 1512841 decimal digits
takes 0.697 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
-unknown- primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual2675.912665.6716%----5.912665.6716%0.0000%
PrimeNet2610.061162.2951%220004500000.00913.3160%0.070263.5454%1.2503%
GPU722651.451764.6154%340007000000.01412.4181%1.465865.4710%0.8556%
Difference+2+4.4609+1.0563%-34000-700000-0.0141-2.4181%+4.4467+0.2006%+0.2006%

Known prime factors (3 factors, 159.9 bits, 0.00318085% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
5025547110362218251291443.3271098012
22 × 3 × 37 × 2473
-3724733.882e-73.411e-55.064e-5
50255477552240159569671549.42475138489
33 × 83 × 33529
2008-09-3083335292.600e-50.00040.0007
50255471585712347373663964412167.10415776514948260
22 × 5 × 112 × 6519221053
2019-09-2212165192210538.178471.387133.33

4 Composite Factors:
exponentprime factorscomposite factordigitsbits*
502554783348197677658513642632237432892.751
5025547175002732164617685670488678996588934110.431
502554711975680471360875923916703891795444736116.528
5025547132166266188804049103452119966880580035762189866349159.855
P-1 results:
No P-1 results for M5025547


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2008-09-30T21:42:00markrManual testing??49.424151.10758e-51.4782.35004e-5


ECM factoring results:

Old Calculation Method

Total ECM effort:0.632 GHz-days
Estimated T-Level:0.150
DigitsB1CurvesCompleteFacMiss
20110003 / 1000.03097.030%
25500003 / 2800.01198.932%

New Calculation Method

Total ECM effort:0.632 GHz-days
Estimated T-Level:0.150
DigitsB1CompleteFacMiss
20110000.11589.102%
25500000.01198.938%


ECM Summary

B1B2factorcurvesGHz-days
50000500000030.632


Lucas-Lehmer results:
No L-L results for M5025547


PRP results:
dateuseridcompidcofactorsres64PRP
2017-11-22T06:34:47kkmrkkblmbrbkc4.xlarge
11036221825129
755224015956967
7610F0F98FA5E3__no
2018-04-26T17:23:09Oliver KruseGTX-5
11036221825129
755224015956967
7610F0F98FA5E3__no
2019-09-22T22:29:55mnd950871b
11036221825129
755224015956967
158571234737366396441
7610F0F98FA5E36Cno


P-1 factor-bounds graph:
100
101
102
103
100
101
102
103
104
105
106
107
108
109
1010
TF factor-bounds graph:
267
2
240
250
260
270
280
290
2100
Last modified: 2019-09-22T22:29:55+00:00