is 2 3050683 - 1
has 918348 decimal digits
takes 0.260 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L197086D9BECDC39Bdouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual272313.481869.4444%30000001000000001.02245.7650%314.504371.2060%1.7615%
PrimeNet2600.050363.3333%120002200000.00292.5229%0.053264.2584%0.9251%
GPU722641.166765.6250%140002200000.00311.4650%1.169866.1286%0.5036%
Difference+8+312.3151+3.8194%+2986000+99780000+1.0193+4.3000%+313.3344+5.0774%+5.0774%

Known prime factors:
No known factors for M3050683

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2004-02-07T00:00:00ANONYMOUSv4_computers2048204800---0.002--0.103%
2010-10-04T15:51:00markrtiny1100002447500---0.029--1.647%
2016-03-16T01:29:39Squeeky_SquirrelP4_2600205000568875012---0.062--2.299%
2017-09-26T21:10:01mikrMSI300000010000000012---1.022--5.765%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2001-06-03T00:00:00ANONYMOUSv4_computers21260--0.050--
2009-02-12T22:06:00Sturle Sundegouffy.ifi260261--0.050--
2011-03-18T16:01:00Sid & AndyBuzz261262--0.101--
2013-01-07T13:54:00dbaughManual testing262263--0.322--
2015-02-07T18:28:00VictordeHollanderManual testing263264--0.644--
2015-02-07T18:28:00VictordeHollanderManual testing264265--1.225--
2015-06-06T19:31:00ThaManual testing265266--2.450--
2017-05-07T02:13:05Gordon SpenceManual testing266267--4.899--
2018-07-25T22:30:18ramgeisManual testing267268--9.80--
2020-07-02T04:28:48Smok_bmvManual testing268269--19.60--
2020-07-02T04:28:48Smok_bmvManual testing269270--39.19--
2020-07-02T04:28:48Smok_bmvManual testing270271--78.38--
2020-07-03T04:29:54Smok_bmvManual testing271272--156.8--


ECM factoring results:

Old Calculation Method

Total ECM effort:11.829 GHz-days
Estimated T-Level:4.950
DigitsB1CurvesCompleteFacMiss
201100099 / 1000.99036.973%
255000099 / 2800.35470.173%

New Calculation Method

Total ECM effort:11.829 GHz-days
Estimated T-Level:4.950
DigitsB1CompleteFacMiss
20110003.8632.100%
25500000.35769.966%
302500000.02397.769%
3510000000.00199.895%


ECM Summary

B1B2factorcurvesGHz-days
500005000000789.085
50000570000070.866
50000670000070.937
50000675000070.941


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1999-06-26T00:00:00ANONYMOUSv4_computers197086D9BECDC39B0.260


PRP results:
No PRP results for M3050683


P-1 factor-bounds graph:
B1 = 3000000, B2 = 100000000 (P-1 stage 2)
B1 = 3000000 (P-1 stage 1)
B1 = 205000, B2 = 5688750 (P-1 stage 2)
B1 = 110000, B2 = 2447500 (P-1 stage 2)
B1 = 205000 (P-1 stage 1)
B1 = 110000 (P-1 stage 1)
B1 = 2048, B2 = 204800 (P-1 stage 2)
B1 = 2048 (P-1 stage 1)
102
103
104
105
106
107
102
103
104
105
106
107
108
TF factor-bounds graph:
272
271
270
269
268
267
266
265
264
263
262
261
260
250
260
270
280
290
2100
Last modified: 2022-05-04T17:11:50+00:00