is 2 499327 - 1
has 150313 decimal digits
takes 0.006 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-L7C62B7C7DA829FE6double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual26759.507971.6418 %131072131072000.01433.3596 %59.522272.5945 %
Target2440.000056.8182 %900014000000.001414.3541 %0.001563.0166 %
Difference+23+59.5079+14.8236 %+122072+11707200+0.0129-10.9945 %+59.5208+9.5780 %

Known prime factors (1 factor, 115.8 bits, 0.02320102% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
4993277481999587810346639384534761831720135115.84974920839327838737334297311800
23 × 52 × 727 × 54347 × 160789 × 2770771 × 21281669
2012-07-022770771212816693.512e+110.06450.0963

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2001-12-22ANONYMOUSv4_computers500001000000--0.00219.450%
2001-12-22ANONYMOUSv4_computers2000200000--0.00011.073%
2002-06-29ANONYMOUSv4_computers32768327680012--0.00422.116%
2002-09-29ANONYMOUSv4_computers65536655360012--0.00724.761%
2003-05-04ANONYMOUSv4_computers1310721310720030--0.01427.354%
2010-12-22Rob_Deetwopc5000001000000--0.00919.936%
2010-12-23Rob_Deetwopc100000020000006--0.01822.118%


Trial Factoring results:
5758596061626364656667
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2000-05-05ANONYMOUSv4_computers212540.005
2022-03-07LordJuliusManual testing254255
2001-04-01ANONYMOUSv4_computers212560.019
2002-01-15ANONYMOUSv4_computers212570.038
2003-12-13ANONYMOUSv4_computers212580.077
2022-03-07LordJuliusManual testing258260
2011-06-20Sid & AndyBuzz2602610.308


ECM factoring results:
Total ECM effort:12.794 GHz-days
Estimated T-Level:26.435
DigitsB1CompleteFacMiss
201100023.8990.000%
25500003.0284.840%
302500000.28775.049%
3510000000.02297.832%
4030000000.00199.860%


ECM Summary

B1B2factorcurvesGHz-days
10.013
5000050000002813.447
250000250000001449.333


Lucas-Lehmer results:
No L-L results for M499327


PRP results:
dateuseridcompidcofactorsres64
2017-09-27Oliver KruseGTX-0
74819995878103466393845347618317201
27D5BCCF1C8DC388
2017-11-03kkmrkkblmbrbkc4.xlarge
74819995878103466393845347618317201
27D5BCCF1C8DC388
2020-04-18Oliver KruseAddPrpType5
74819995878103466393845347618317201
C590225983D9DBA7


CERT results:
No CERT results for M499327


P-1 factor-bounds graph:
B1 = 1000000, B2 = 2000000 (P-1 stage 2)
B1 = 1000000 (P-1 stage 1)
B1 = 131072, B2 = 13107200 (P-1 stage 2)
B1 = 500000, B2 = 1000000 (P-1 stage 2)
B1 = 500000 (P-1 stage 1)
B1 = 65536, B2 = 6553600 (P-1 stage 2)
B1 = 32768, B2 = 3276800 (P-1 stage 2)
B1 = 131072 (P-1 stage 1)
B1 = 50000, B2 = 1000000 (P-1 stage 2)
B1 = 65536 (P-1 stage 1)
B1 = 50000 (P-1 stage 1)
B1 = 32768 (P-1 stage 1)
B1 = 2000, B2 = 200000 (P-1 stage 2)
B1 = 2000 (P-1 stage 1)
102
103
104
105
106
107
102
103
104
105
106
107
108
TF factor-bounds graph:
261
260
258
257
256
255
254
this exponent TF target: 44
TF double-checked to: 67
ECM T-Level=26.44 ~= 71-bit
250
260
270
280
290
2100
2110
2120
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Last modified: 2024-03-13T02:15:48+00:00