is 2 5062357 - 1
has 1523922 decimal digits
takes 0.702 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-LEF693C4C606B9FA6double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual2675.869665.6716 %3300001788715502.02147.9334 %7.891068.3951 %
Target2651.441264.6154 %3400035000000.04482.4211 %1.486065.4721 %
Difference+2+4.4284+1.0563 %+296000+175371550+1.9766+5.5124%+6.4050+2.9230 %

Known prime factors (2 factors, 129.5 bits, 0.00255842% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
5062357118992791351884143672063.3681175270643219
3 × 391756881073
2014-06-0833917568810730.31534,289.88,012.2
5062357818194788764263619212066.1498081164453280
25 × 5 × 50507277833
2019-11-0532505072778332.9173553.071,033.0

1 Composite Factors:
P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2000-06-28ANONYMOUSv4_computers25000231250--0.0071.659%
2000-12-07ANONYMOUSv4_computers2000020000--0.0040.519%
2004-01-27ANONYMOUSv4_computers2000020000--0.0040.519%
2009-08-11USAFSSP4_26006000010650006--0.0233.016%
2023-04-15Kevin_9611Factor_1330000178871550--2.3039.469%


Trial Factoring results:
5758596061626364656667
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
1998-06-01ANONYMOUSv4_computers212610.030
2008-12-29Sturle Sundeakerman.ifi2612620.061
2009-08-08GrunwalderGIMPManual testing212630.315
2022-06-21LordJuliusManual testing264265
2022-06-21LordJuliusManual testing265266
2019-11-05TJAOIManual testing266267*
66.149
20
0.440


ECM factoring results:
Total ECM effort:0.817 GHz-days
Estimated T-Level:0.577
DigitsB1CompleteFacMiss
20110000.11589.102%
25500000.01198.938%


ECM Summary

B1B2factorcurvesGHz-days
10.422
50000500000030.395


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1998-08-16ANONYMOUSv4_computersEF693C4C606B9FA60.702
2001-03-17ANONYMOUSv4_computersEF693C4C606B9FA60.702
2004-01-27ANONYMOUSv4_computersEF693C4C606B9FA60.702


PRP results:
dateuseridcompidcofactorsres64
2017-09-20kkmrkkblmbrbkManual testing
11899279135188414367
B01B7B6FF99C0D73
2018-04-29treborLaptop
11899279135188414367
B01B7B6FF99C0D73
2019-11-06mnd9kitchen
11899279135188414367
81819478876426361921
EDEFDEF9228AA7F9
2019-11-08arnaudstm-11-010
11899279135188414367
81819478876426361921
EDEFDEF9228AA7F9


CERT results:
No CERT results for M5062357


P-1 factor-bounds graph:
B1 = 330000, B2 = 178871550 (P-1 stage 2)
B1 = 330000 (P-1 stage 1)
B1 = 60000, B2 = 1065000 (P-1 stage 2)
B1 = 60000 (P-1 stage 1)
B1 = 25000, B2 = 231250 (P-1 stage 2)
B1 = 25000 (P-1 stage 1)
B1 = 20000 (P-1 stage 1)
100
101
102
103
104
105
106
100
101
102
103
104
105
106
107
108
109
1010
1011
1012
TF factor-bounds graph:
266
265
263
262
261
this exponent TF target: 65
TF double-checked to: 67
ECM T-Level=0.58 ~= -15-bit
250
260
270
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Last modified: 2024-02-29T14:28:04+00:00