is 2 945037 - 1
has 284485 decimal digits
takes 0.023 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L81ED809802473B1Bdouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual26863.071570.5882%5000000012636914390102,422.579221.9019%2,485.650777.0300%6.4417%
PrimeNet2400.000050.0000%80003600000.001023.4361%0.001061.7181%11.7181%
GPU722440.000054.5455%150006500000.001718.2855%0.001762.8570%8.3116%
Difference+24+63.0715+16.0428%+49985000+1263690789010+2,422.5775+3.6164%+2,485.6489+14.1729%-1.8699%

Known prime factors (1 factor, 127.3 bits, 0.01346513% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
94503720239651609575611009230438703185509110339127.250107083911050972665669335902738123
7 × 67 × 127 × 149 × 2465059 × 4686029 × 1044549684539
2022-09-07468602910445496845391.512e+112,001.33,737.5

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2002-01-08T00:00:00ANONYMOUSv4_computers2000200000---0.000--0.172%
2002-02-24T00:00:00ANONYMOUSv4_computers4096409600---0.001--0.375%
2002-05-05T00:00:00ANONYMOUSv4_computers8192819200---0.002--0.687%
2002-05-11T00:00:00Jocelyn Larouchev4_computers50005000---0.000--0.049%
2002-05-11T00:00:00Jocelyn Larouchev4_computers60006000---0.000--0.061%
2002-05-25T00:00:00ANONYMOUSv4_computers163841638400---0.004--1.132%
2002-07-27T00:00:00ANONYMOUSv4_computers327683276800---0.007--1.717%
2003-01-09T00:00:00ANONYMOUSv4_computers655366553600---0.015--2.440%
2003-09-14T00:00:00ANONYMOUSv4_computers13107213107200---0.029--3.290%
2011-06-08T21:53:00Jocelyn LaroucheManual testing200000200000---0.007--1.021%
2011-07-14T16:35:00Jocelyn LaroucheManual testing214493214493---0.008--1.060%
2011-10-13T00:56:00Jocelyn LaroucheManual testing714978714978---0.025--1.874%
2012-06-26T21:02:00Jocelyn LaroucheManual testing945151945151---0.033--2.103%
2013-10-22T12:01:00David Campeaui5-2500k98500031520000---0.093--5.284%
2014-08-12T11:40:00alpertronManual testing10000000500000000---1.290--9.863%
2022-09-07T04:21:03axnManual testing50000000126369143901039127.2502,4230.0464,84521.902%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2000-06-29T00:00:00ANONYMOUSv4_computers21255--0.005--
2000-07-03T00:00:00ANONYMOUSv4_computers21255--0.005--
2000-11-25T00:00:00ANONYMOUSv4_computers21256--0.010--
2001-10-20T00:00:00ANONYMOUSv4_computers21257--0.020--
2003-08-25T00:00:00ANONYMOUSv4_computers21258--0.041--
2016-02-23T16:28:17Mark RoseManual testing258260--0.122--
2010-05-15T16:49:00Architects Cubedi4l_1260261--0.163--
2014-06-04T08:42:00lycornManual testing261262--0.325--
2015-09-18T17:53:00Gordon SpenceManual testing262263--1.039--
2015-09-18T17:53:00Gordon SpenceManual testing263264--2.077--
2015-12-22T23:59:53lycornManual testing264265--3.954--
2018-03-27T03:29:50Smok_bmvManual testing265266--7.907--
2018-03-27T03:29:50Smok_bmvManual testing266267--15.81--
2018-03-28T03:28:02Smok_bmvManual testing267268--31.63--


ECM factoring results:
Total ECM effort:14.548 GHz-days
Estimated T-Level:25.680
DigitsB1CompleteFacMiss
201100015.0420.000%
25500001.65819.044%
302500000.13687.289%
3510000000.00999.091%


ECM Summary

B1B2factorcurvesGHz-days
5000050000002807.909
25000025000000476.638


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2001-12-08T00:00:00ANONYMOUSv4_computers81ED809802473B1B0.023
2015-04-11T21:21:00MadPooManual testing81ED809802473B1B0.023


PRP results:
dateuseridcompidcofactorsres64PRP
2022-09-10T09:43:21Denial140i5-8400
202396516095756110092304387031855091103
71D7177DF0539F6Dno


P-1 factor-bounds graph:
B1 = 50000000, B2 = 1263691439010 (P-1 stage 2)
B1 = 50000000 (P-1 stage 1)
B1 = 10000000, B2 = 500000000 (P-1 stage 2)
B1 = 10000000 (P-1 stage 1)
B1 = 985000, B2 = 31520000 (P-1 stage 2)
B1 = 985000 (P-1 stage 1)
B1 = 945151 (P-1 stage 1)
B1 = 131072, B2 = 13107200 (P-1 stage 2)
B1 = 714978 (P-1 stage 1)
B1 = 65536, B2 = 6553600 (P-1 stage 2)
B1 = 214493 (P-1 stage 1)
B1 = 32768, B2 = 3276800 (P-1 stage 2)
B1 = 200000 (P-1 stage 1)
B1 = 131072 (P-1 stage 1)
B1 = 16384, B2 = 1638400 (P-1 stage 2)
B1 = 65536 (P-1 stage 1)
B1 = 8192, B2 = 819200 (P-1 stage 2)
B1 = 32768 (P-1 stage 1)
B1 = 4096, B2 = 409600 (P-1 stage 2)
B1 = 16384 (P-1 stage 1)
B1 = 2000, B2 = 200000 (P-1 stage 2)
B1 = 8192 (P-1 stage 1)
B1 = 6000 (P-1 stage 1)
B1 = 5000 (P-1 stage 1)
B1 = 4096 (P-1 stage 1)
B1 = 2000 (P-1 stage 1)
102
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104
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108
102
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TF factor-bounds graph:
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267
266
265
264
263
262
261
260
258
257
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255
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270
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2100
2110
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Last modified: 2022-09-10T09:43:21+00:00