is 2 4894499 - 1
has 1473392 decimal digits
takes 0.678 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
Actual2676.070965.6716%----6.070965.6716%0.0000%
PrimeNet2610.062862.2951%220004500000.00913.3015%0.071963.5399%1.2448%
GPU722651.490664.6154%320007000000.01372.3735%1.504365.4553%0.8399%
Difference+2+4.5803+1.0563%-32000-700000-0.0137-2.3735%+4.5665+0.2164%+0.2164%

Known prime factors (3 factors, 163.7 bits, 0.00334535% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
489449955209948731032.362564
22 × 3 × 47
-4471.312e-101.275e-61.636e-6
489449997260178434669749531963.077993566230524
22 × 32 × 7 × 137 × 1753 × 16417
2016-12-081753164170.58860.00050.0007
48944993631586049450876701292168.29937098649416936
23 × 3 × 1545777059039
2019-07-258154577705903915.92116,92731,614

4 Composite Factors:
exponentprime factorscomposite factordigitsbits*
4894499536972946484876852603324159692995.439
4894499200499679598766147331772424861731100.661
4894499353208707170449668734972999408636927893740131.376
48944991950063461387010958190334325528516510819588389000150163.738
P-1 results:
No P-1 results for M4894499


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2016-12-08T17:33:04TJAOIManual testing263264*63.077190.2631.3790.534


ECM factoring results:

Old Calculation Method

Total ECM effort:0.629 GHz-days
Estimated T-Level:0.150
DigitsB1CurvesCompleteFacMiss
20110003 / 1000.03097.030%
25500003 / 2800.01198.932%

New Calculation Method

Total ECM effort:0.629 GHz-days
Estimated T-Level:0.150
DigitsB1CompleteFacMiss
20110000.09790.776%
25500000.00999.129%


ECM Summary

B1B2factorcurvesGHz-days
50000500000030.629


Lucas-Lehmer results:
No L-L results for M4894499


PRP results:
dateuseridcompidcofactorsres64PRP
2017-11-20T13:20:20kkmrkkblmbrbkc4.xlarge
5520994873
9726017843466974953
1531D440E270A1__no
2018-04-05T05:58:59Oliver KruseGTX-7
5520994873
9726017843466974953
1531D440E270A1__no
2019-07-25T02:33:33ATHec2-PRPCF
5520994873
9726017843466974953
363158604945087670129
1531D440E270A157no


P-1 factor-bounds graph:
100
101
102
103
104
100
101
102
103
104
105
106
107
108
109
1010
1011
1012
1013
TF factor-bounds graph:
267
264
230
240
250
260
270
280
290
2100
Last modified: 2019-07-25T22:27:30+00:00