is 2 1735549 - 1
has 522453 decimal digits
takes 0.094 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L790C739B74529444double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual26717.120868.6567%36422001234567890.80008.6287%17.920871.3612%2.7045%
PrimeNet2570.011163.1579%80001400000.00122.7981%0.012364.1888%1.0309%
GPU722610.177065.5738%80001100000.00111.4102%0.178166.0593%0.4855%
Difference+6+16.9438+3.0829%+3634200+123346789+0.7989+7.2185%+17.7427+5.3020%+5.3020%

Known prime factors (1 factor, 85.5 bits, 0.00492462% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1735549535561606862835527246665372685.46915429169872554319332
22 × 11 × 1621 × 17807 × 12148316849
2016-03-1017807121483168498,943,69452.06697.242

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2011-02-11T06:19:00Carsten Kossendeyleela950001543750---0.014--2.399%
2014-04-04T00:13:00Jocelyn LaroucheManual testing100000100000---0.008--0.886%
2014-05-06T10:52:00Jocelyn LaroucheManual testing136982136982---0.011--1.059%
2014-09-10T00:51:00Jocelyn LaroucheManual testing173964173964---0.014--1.203%
2014-12-02T21:55:00Jocelyn LaroucheManual testing210946210946---0.017--1.328%
2015-01-27T21:58:00Jocelyn LaroucheManual testing255244255244---0.020--1.458%
2015-01-29T22:02:00Jocelyn LaroucheManual testing280768280768---0.022--1.527%
2015-02-11T12:22:00Jocelyn LaroucheManual testing373700373700---0.029--1.742%
2015-02-21T13:42:00Jocelyn LaroucheManual testing411070411070---0.032--1.818%
2015-03-08T04:50:00Jocelyn LaroucheManual testing452177452177---0.036--1.895%
2015-03-15T18:55:00Jocelyn LaroucheManual testing497394497394---0.039--1.975%
2015-04-08T16:59:00Jocelyn LaroucheManual testing601846601846---0.047--2.139%
2015-05-01T17:20:00Jocelyn LaroucheManual testing728233728233---0.057--2.311%
2015-05-07T16:19:00Jocelyn LaroucheManual testing801056801056---0.063--2.399%
2015-05-22T00:28:00Jocelyn LaroucheManual testing881161881161---0.069--2.490%
2015-05-26T18:17:00Jocelyn LaroucheManual testing969277969277---0.076--2.582%
2015-06-08T13:43:00Jocelyn LaroucheManual testing10662041066204---0.084--2.676%
2015-06-25T21:15:00Jocelyn LaroucheManual testing11728241172824---0.092--2.772%
2015-07-07T18:13:00Jocelyn LaroucheManual testing12901061290106---0.101--2.870%
2015-07-21T01:20:00Jocelyn LaroucheManual testing14191161419116---0.112--2.969%
2015-07-27T01:26:00Jocelyn LaroucheManual testing15610271561027---0.123--3.071%
2015-09-16T07:26:00Jocelyn LaroucheManual testing17171291717129---0.135--3.174%
2015-09-27T21:23:22Jocelyn LaroucheManual testing18888411888841---0.149--3.279%
2015-09-28T03:52:31mikrMSI3642200123456789---0.800--8.629%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1998-11-21T00:00:00ANONYMOUSv4_computers21257--0.011--
2003-02-02T00:00:00ANONYMOUSv4_computers21258--0.022--
2016-02-23T16:28:49Mark RoseManual testing258260--0.066--
2010-04-22T12:45:00Architects Cubedm1_f2260261--0.088--
2016-02-23T16:28:49Mark RoseManual testing261262--0.177--
2010-11-18T02:51:00GrunwalderGIMPManual testing21263--0.920--
2016-02-23T16:28:49Mark RoseManual testing262263--0.566--
2015-05-05T08:43:00snme2pm1Manual testing263264--1.131--
2015-05-05T08:43:00snme2pm1Manual testing264265--2.153--
2015-09-03T11:06:00ramgeisManual testing265266--4.306--


ECM factoring results:

Old Calculation Method

Total ECM effort:17.236 GHz-days
Estimated T-Level:24.482
DigitsB1CurvesCompleteFacMiss
2011000251 / 1002.5108.025%
2550000251 / 2800.89640.737%

New Calculation Method

Total ECM effort:17.236 GHz-days
Estimated T-Level:24.482
DigitsB1CompleteFacMiss
20110008.0970.030%
25500000.73248.105%
302500000.04595.594%
3510000000.00299.794%


ECM Summary

B1B2factorcurvesGHz-days
50000500000024817.03
50000500000030.206


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1998-11-28T00:00:00ANONYMOUSv4_computers790C739B745294440.094
2015-06-29T14:43:00MadPooManual testing790C739B745294440.094


PRP results:
dateuseridcompidcofactorsres64PRP
2017-10-03T04:43:24Oliver KruseGTX-3
53556160686283552724666537
22E008DD3672C8__no
2017-11-03T16:17:49ATHec2-1xf
53556160686283552724666537
22E008DD3672C8__no


P-1 factor-bounds graph:
B1 = 3642200, B2 = 123456789 (P-1 stage 2)
B1 = 3642200 (P-1 stage 1)
B1 = 1888841 (P-1 stage 1)
B1 = 1717129 (P-1 stage 1)
B1 = 1561027 (P-1 stage 1)
B1 = 1419116 (P-1 stage 1)
B1 = 1290106 (P-1 stage 1)
B1 = 1172824 (P-1 stage 1)
B1 = 1066204 (P-1 stage 1)
B1 = 969277 (P-1 stage 1)
B1 = 881161 (P-1 stage 1)
B1 = 801056 (P-1 stage 1)
B1 = 728233 (P-1 stage 1)
B1 = 601846 (P-1 stage 1)
B1 = 497394 (P-1 stage 1)
B1 = 452177 (P-1 stage 1)
B1 = 411070 (P-1 stage 1)
B1 = 373700 (P-1 stage 1)
B1 = 280768 (P-1 stage 1)
B1 = 255244 (P-1 stage 1)
B1 = 210946 (P-1 stage 1)
B1 = 173964 (P-1 stage 1)
B1 = 95000, B2 = 1543750 (P-1 stage 2)
B1 = 136982 (P-1 stage 1)
B1 = 100000 (P-1 stage 1)
B1 = 95000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2020-05-25T09:37:50+00:00