is 2 1675769 - 1
has 504457 decimal digits
takes 0.079 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
-unknown- primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual26717.731568.6567%500000150000000.08805.0151%17.819570.2286%1.5719%
PrimeNet2570.011563.1579%70001200000.00092.5712%0.012464.1052%0.9473%
GPU722610.183365.5738%7000900000.00081.2547%0.184166.0057%0.4320%
Difference+6+17.5482+3.0829%+493000+14910000+0.0872+3.7603%+17.6354+4.2229%+4.2229%

Known prime factors (5 factors, 268.6 bits, 0.01602665% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1675769120655369926.84636
22 × 32
-995.377e-126.142e-71.250e-6
167576921449843211030.998640
27 × 5
2008-07-151281289.718e-118.735e-61.778e-5
1675769167029161898382571753.8914983657112
23 × 72 × 23 × 552757
2014-10-19495527570.00120.00210.0038
167576920908765257334489337032270.825623855831481979
23 × 31 × 53 × 739 × 22339549
2019-03-2473922339549143.180.08310.1551
1675769778811793339237777657991932686.00923237444819042415084
22 × 3 × 17789 × 108856806730013
2019-12-301778910885680673001314,744,280404,723755,909

26 Composite Factors:
exponentprime factorscomposite factordigitsbits*
16757692588038747494694491857.845
167576920152965162610089486518332580.737
1675769358274933421801207909684972684.889
16757692522754787458072767385920014073097.671
1675769448489736484520098804710347066331101.823
1675769432277942954578573849887587291039334111.736
1675769939678243068974762420649721131721734112.856
167576916705390857225572671672767901945295336117.008
16757693492373537262599117738437012068607567138124.716
167576954112694648252535309198785863402493964739128.669
1675769130084281118029214828132253546146101112660143139.900
16757692015595098167777786936993658460565422235465744143.854
1675769421373617824254146449805563174395299324642759946151.562
16757697491086480503584367257380369933251007731455439147155.714
167576916283992966573823100782499508504728276746790167948156.834
167576915695366939395547467868568632411816357659314937076
9
51166.747
167576927902874340672901622628439357088003686193656910229
21
52170.899
167576990383980351607127765407074650765290570746060891166
75279
55182.560
167576919647511801753692919656366669409566284756180872735
464551
56183.680
167576934928909596575127640206064276932848307987213797222
4574959
57187.832
167576933666315997345206535789331005235758502310558799631
0520712849
60197.745
167576927199016975659821682586346283948080480722068176028
38722188733503
64210.725
167576942143604761424131616511619213710510008212229279857
667842546304871
65214.679
167576932817074296354998035866564852515344272432185222218
6201473170128447127607
72237.571
167576958341464959403156138803551507745246609194978996273
95864186508166782406463
73241.723
167576970392109826773578236919577256775090876284189837426
8410502497027684644794501249847
81268.570
P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2016-03-17T19:18:15alpertronManual testing5000001500000012-
skipped known factor: 120655369
skipped known factor: 2144984321
skipped known factor: 16702916189838257
--0.088--5.015%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2008-07-15T07:45:00J FeitsmaManual testing??30.998101.18246e-110.1722.57544e-11
2014-10-19T12:41:00TJAOIManual testing253254*53.891170.0000.1700.001


ECM factoring results:

Old Calculation Method

Total ECM effort:14.897 GHz-days
Estimated T-Level:24.482
DigitsB1CurvesCompleteFacMiss
2011000251 / 1002.5108.025%
2550000251 / 2800.89640.737%

New Calculation Method

Total ECM effort:14.897 GHz-days
Estimated T-Level:24.482
DigitsB1CompleteFacMiss
20110008.0970.030%
25500000.73248.105%
302500000.04595.594%
3510000000.00299.794%


ECM Summary

B1B2factorcurvesGHz-days
50000500000021712.88
50000500000010.059
500005000000331.959


Lucas-Lehmer results:
No L-L results for M1675769


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-30T14:59:24alpertronManual testing
120655369
2144984321
16702916189838257
9B6EA4C9750313__no
2017-10-18T12:54:49Oliver KruseThreadripper
120655369
2144984321
16702916189838257
9B6EA4C9750313__no
2019-03-24T10:39:41ATHec2-PRPCF
120655369
2144984321
16702916189838257
2090876525733448933703
A9991C4C590FB368no
2019-03-25T07:58:36marssystemsSYSTEM01
120655369
2144984321
16702916189838257
2090876525733448933703
A9991C4C590FB368no
2019-12-31T03:04:15Nagasan64Core2
120655369
2144984321
16702916189838257
2090876525733448933703
77881179333923777765799193
A9991C4C590FB368no


P-1 factor-bounds graph:
B1 = 500000, B2 = 15000000 (P-1 stage 2)
B1 = 500000 (P-1 stage 1)
100
101
102
103
104
105
106
100
101
102
103
104
105
106
107
108
109
1010
1011
1012
1013
1014
1015
TF factor-bounds graph:
267
254
2
220
230
240
250
260
270
280
290
2100
Last modified: 2019-12-31T03:04:15+00:00