is 2131231-1
has 39,505 decimal digits
takes 0.000 GHz-days to do one L-L test
Last-known PrimeNet details:
0 L-L tests remaining
ResidueStatus
L-L49EFDA45989F78__double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual26312.161971.4286%100,000,0002,000,000,0000.942715.2658%13.104686.6944%31.6944%
PrimeNet2400.000055.0000%1,40028,0000.00009.7507%0.000064.7507%9.7507%
GPU722440.000059.0909%2,20040,0000.00006.3644%0.000065.4553%6.3644%
Difference+19+12.1619+12.3377%+99,997,800+1,999,960,000+0.9427+8.9014%+13.1045+21.2391%+21.2391%

Known prime factors (3 factors, 230.5 bits, 0.17566641% known):
Remaining cofactor is not a probable-prime

GHz-days
exponentfactordigitsbits*kmin B1min B2date foundmin. TFmin. P-1normal P-1
131231304052515906011444.789115846300
22 × 52 × 29 × 43 × 929
43929-3.494e-54.228e-74.359e-7
1312311204188537634971546.775458804908
22 × 17 × 251 × 26881
25126,8812008-07-260.00017.883e-61.267e-5
13123167988747218407687467224178793388945835168942138.9642590422507578532795879943717314847324
22 × 251 × 1531 × 21499 × 164249 × 936731 × 1725359 × 295288369
1,725,359295,288,3692013-06-121.182e+120.08210.1392

4 Composite Factors:
exponentprime factorscomposite factordigitsbits*
13123136613655449309163743220916972891.564
13123120672149645054596537093040553119352582980198310904
875089
56183.754
13123181871270088567987461982248623300796765662459775856
496433
56185.739
13123124893165650849558749247651899700431933300291413593
34920106592332826233
70230.529
P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2013-06-12T12:20:00BloodIceURM2100,000,0002,000,000,00042138.9640.9430.0011.88515.266%
2017-03-23T22:27:29kkmrkkblmbrbkManual testing100,000,0002,000,000,00012---0.943--15.266%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2008-07-26T12:48:00J FeitsmaManual testing??46.775153.01199e-50.0016.23902e-5


ECM factoring results:
ECM Summary

B1B2factorcurvesGHz-days
50,0005,000,0002810.942
250,00025,000,0005849.78
1,000,000100,000,000453.016


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2000-05-24T00:00:00ANONYMOUSv4_computers49EFDA45989F78__0.000


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-21T22:01:23Oliver KruseDoppelherz
30405251590601
120418853763497
679887472184076874672241787933889458351689
8F0E58B12AB60B70no
2017-09-22T10:01:11Oliver KruseManual testing
30405251590601
120418853763497
679887472184076874672241787933889458351689
8F0E58B12AB60B70no
2017-10-09T03:47:26Chang Chia-Tchehomura8F0E58B12AB60B__?
2017-10-13T20:51:17kkmrkkblmbrbkManual testing
30405251590601
120418853763497
679887472184076874672241787933889458351689
8F0E58B12AB60B__no
2020-04-17T15:37:48Oliver KruseAddPrpType5
30405251590601
120418853763497
679887472184076874672241787933889458351689
EE714EFACB4560__no


P-1 factor-bounds graph:
B1 = 100,000,000, B2 = 2,000,000,000 (stage 2)
B1 = 100,000,000 (stage 1)
100
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107
108
100
101
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109
1010
TF factor-bounds graph:
263
2
240
250
260
270
280
290
2100
2110
2120
2130
2140
Last modified: 2020-04-17T15:37:48+00:00