is 2 715069 - 1
has 215258 decimal digits
takes 0.014 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-LDE7AFE8E5AE9F89Edouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual26741.553970.1493 %150000040900444206.494411.2297 %48.048373.5014 %
Target2440.000054.5455 %1200022500000.003916.5402 %0.003962.0637 %
Difference+23+41.5539+15.6038 %+1488000+4087794420+6.4905-5.3105 %+48.0444+11.4377 %

Known prime factors (2 factors, 148.3 bits, 0.02073722% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
7150699061191453438501448732169.618633588608472644
22 × 11 × 14399741101651
2014-12-101114399741101651166.9622,72042,435
7150694799192460535873385578732478.667335575480165961144
23 × 197 × 212928604166219
2016-06-0319721292860416621985,609335,960627,480

1 Composite Factors:
P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2000-12-07Alex Kruppav4_computers1000004000000--0.00924.597%
2002-05-25ANONYMOUSv4_computers163841638400--0.00320.150%
2002-07-06ANONYMOUSv4_computers32768327680012--0.00622.856%
2002-11-09ANONYMOUSv4_computers65537655370012--0.01225.513%
2003-06-17ANONYMOUSv4_computers1310721310720012--0.02428.114%
2011-02-20JossManual testing400000400000--0.01217.317%
2011-09-24JossManual testing513195513195--0.01518.089%
2011-10-01JossManual testing10263901026390--0.03020.229%
2012-03-20JossManual testing15395851539585--0.04521.473%
2012-10-25JossManual testing25466712546671--0.07423.005%
2022-12-29USAFSS6917th_Scty_Sq15000004090044420--6.49445.385%


Trial Factoring results:
5758596061626364656667
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
1999-12-15ANONYMOUSv4_computers2532540.002
2000-05-17ANONYMOUSv4_computers212550.007
2000-05-31ANONYMOUSv4_computers212550.007
2001-04-01ANONYMOUSv4_computers212560.013
2001-10-20ANONYMOUSv4_computers212570.027
2003-09-21ANONYMOUSv4_computers212580.054
2008-10-12Sturle Sundejodel.ifi2582590.054
2008-10-12Sturle Sundejodel.ifi2592600.107
2010-06-29Architects Cubedm1_fw2602610.215


ECM factoring results:
Total ECM effort:11.132 GHz-days
Estimated T-Level:25.647
DigitsB1CompleteFacMiss
201100014.4620.000%
25500001.58820.440%
302500000.12987.855%
3510000000.00999.139%


ECM Summary

B1B2factorcurvesGHz-days
10.173
5000050000002284.993
500005000000440.994
25000025000000444.972


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2002-10-07ANONYMOUSv4_computersDE7AFE8E5AE9F89E0.014


PRP results:
dateuseridcompidcofactorsres64
2017-09-27Oliver KruseGTX-1
906119145343850144873
479919246053587338557873
6FC72D8627540050
2017-09-28Oliver KruseManual testing
906119145343850144873
479919246053587338557873
6FC72D8627540050
2017-10-13Oliver KruseThreadripper-PC
906119145343850144873
479919246053587338557873
6FC72D8627540050
2017-12-16ATHec2-1xh
906119145343850144873
479919246053587338557873
6FC72D8627540050
2020-04-20Oliver KruseAddPrpType5
906119145343850144873
479919246053587338557873
2195D562D3885992


CERT results:
No CERT results for M715069


P-1 factor-bounds graph:
B1 = 1500000, B2 = 4090044420 (P-1 stage 2)
B1 = 2546671 (P-1 stage 1)
B1 = 1539585 (P-1 stage 1)
B1 = 1500000 (P-1 stage 1)
B1 = 1026390 (P-1 stage 1)
B1 = 131072, B2 = 13107200 (P-1 stage 2)
B1 = 513195 (P-1 stage 1)
B1 = 65537, B2 = 6553700 (P-1 stage 2)
B1 = 400000 (P-1 stage 1)
B1 = 100000, B2 = 4000000 (P-1 stage 2)
B1 = 32768, B2 = 3276800 (P-1 stage 2)
B1 = 131072 (P-1 stage 1)
B1 = 16384, B2 = 1638400 (P-1 stage 2)
B1 = 100000 (P-1 stage 1)
B1 = 65537 (P-1 stage 1)
B1 = 32768 (P-1 stage 1)
B1 = 16384 (P-1 stage 1)
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TF factor-bounds graph:
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this exponent TF target: 44
TF double-checked to: 67
ECM T-Level=25.65 ~= 69-bit
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Last modified: 2024-03-03T02:29:32+00:00