is 2 5025521 - 1
has 1512833 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%1.465965.4710%0.8556%
Difference+2+4.4609+1.0563%-34000-700000-0.0141-2.4181%+4.4467+0.2006%-0.8556%

Known prime factors (2 factors, 70.6 bits, 0.00140461% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
5025521633215647929.23863
32 × 7
-991.443e-111.809e-63.681e-6
502552128047935253111341.351279055
5 × 72 × 17 × 67
2008-09-3049678.170e-81.005e-52.004e-5

1 Composite Factors:
exponentprime factorscomposite factordigitsbits*
502552117760391468312157412172270.589
P-1 results:
No P-1 results for M5025521


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2008-09-30T21:42:00markrManual testing??41.351132.34053e-81.4784.96619e-8


ECM factoring results:
Total ECM effort:0.632 GHz-days
Estimated T-Level:0.577
DigitsB1CompleteFacMiss
20110000.11589.102%
25500000.01198.938%


ECM Summary

B1B2factorcurvesGHz-days
50000500000030.632


Lucas-Lehmer results:
No L-L results for M5025521


PRP results:
dateuseridcompidcofactorsres64PRP
2017-11-21T17:39:43storm55107700_Kaby_Lake
633215647
2804793525311
82BBAD139ACEC3__no
2018-01-14T18:46:18kkmrkkblmbrbkc4.xlarge
633215647
2804793525311
82BBAD139ACEC3__no


P-1 factor-bounds graph:
100
101
102
100
101
102
TF factor-bounds graph:
267
2
220
230
240
250
260
270
280
290
2100
Last modified: 2019-09-23T06:27:06+00:00