is 2 4983613 - 1
has 1500217 decimal digits
takes 0.691 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
Actual2675.962365.6716%----5.962365.6716%0.0000%
PrimeNet2610.061662.2951%220004500000.00913.3114%0.070763.5437%1.2486%
GPU722651.463964.6154%340007000000.01412.4147%1.478165.4698%0.8544%
Difference+2+4.4984+1.0563%-34000-700000-0.0141-2.4147%+4.4843+0.2018%+0.2018%

Known prime factors (2 factors, 105.3 bits, 0.00211310% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
49836136566408488811239.25665880
23 × 33 × 5 × 61
-27611.851e-85.799e-61.104e-5
4983613765155094032303772172066.0527676710591616
27 × 11 × 31 × 175877717
2019-08-281281758777173.50611.92593.5971

1 Composite Factors:
exponentprime factorscomposite factordigitsbits*
49836135024320904709933261937672234417732105.309
P-1 results:
No P-1 results for M4983613


Trial Factoring results:
No TF results for M4983613


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
20110000.09790.776%
25500000.00999.129%


ECM Summary

B1B2factorcurvesGHz-days
50000500000030.632


Lucas-Lehmer results:
No L-L results for M4983613


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-20T06:25:57kkmrkkblmbrbkManual testing
656640848881
5957A56FEF762D__no
2018-04-23T18:09:57Chang Chia-Tcheexbpc13
656640848881
5957A56FEF762D__no
2019-08-31T09:30:45fre_gamesgpu
656640848881
76515509403230377217
3FDF2A309B434636no
2019-08-31T11:07:37ATHec2-PRPCFDC
656640848881
76515509403230377217
3FDF2A309B434636no


P-1 factor-bounds graph:
100
101
102
103
100
101
102
103
104
105
106
107
108
109
TF factor-bounds graph:
267
230
240
250
260
270
280
290
2100
Last modified: 2019-08-31T11:07:37+00:00