is 2 29027249 - 1
has 8738073 decimal digits
takes 28.866 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L9EA650C8E0BE8A96double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual275263.611266.6667%1014000491100005.24064.4649%268.851868.1550%1.4883%
PrimeNet2660.508862.1212%13000050000000.57005.4249%1.078864.1761%2.0549%
GPU722708.231964.2857%22000065000000.81064.0592%9.042565.7354%1.4497%
Difference+5+255.3793+2.3810%+794000+42610000+4.4300+0.4057%+259.8093+2.4195%+2.4195%

Known prime factors:
No known factors for M29027249

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2005-03-20T00:00:00ANONYMOUSv4_computers415000415000---0.598--1.073%
2021-11-11T10:35:06Architects Cubedgpu72ng101400049110000---5.241--4.465%


P+1 Factoring results:
dateuseridcompidb1b2startfactorSmoothdigitsbits*ghz-days
2021-12-12T09:56:11ATH5960X10000002800000027--4.271


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2001-01-21T00:00:00Jocelyn Larouchev4_computers21256--0.000--
2005-03-20T00:00:00ANONYMOUSv4_computers21268--2.053--
2012-03-05T06:18:00bcp19Manual testing268269--2.060--
2017-02-13T15:32:59ramgeisManual testing269270--4.119--
2020-08-17T06:24:04Sid & AndyGPU72_TF270271--8.238--
2020-08-17T07:27:03Sid & AndyGPU72_TF271272--16.48--
2021-01-06T22:40:08Sid & AndyManual testing272273--32.95--
2021-09-10T19:51:54TheJudgerManual testing273274--65.90--
2021-10-06T17:00:25TheJudgerManual testing274275--131.8--


ECM factoring results:
No ECM results for M29027249


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2005-04-02T00:00:00ANONYMOUSv4_computers9EA650C8E0BE8A9628.87
2012-03-07T16:52:00Reboot Itv4_computers9EA650C8E0BE8A9628.87


PRP results:
No PRP results for M29027249


P-1 factor-bounds graph:
B1 = 1014000, B2 = 49110000 (P-1 stage 2)
B1 = 1014000 (P-1 stage 1)
B1 = 415000 (P-1 stage 1)
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108
TF factor-bounds graph:
275
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271
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256
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2100
Last modified: 2021-12-12T09:56:11+00:00