is 2 29012587 - 1
has 8733659 decimal digits
takes 28.851 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-LF1093DCB8F62BA93double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual275263.744466.6667%30000015750000.53271.7424%264.277267.2475%0.5808%
PrimeNet2660.509062.1212%13000050000000.57005.4245%1.079164.1759%2.0547%
GPU722708.236164.2857%22000065000000.81064.0590%9.046765.7353%1.4496%
Difference+5+255.5083+2.3810%+80000-4925000-0.2778-2.3165%+255.2305+1.5121%+1.5121%

Known prime factors (1 factor, 76.4 bits, 0.00026344% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
290125871019445344982940583566312476.4321756901831923745
5 × 13 × 1493 × 7307 × 2477623
2021-11-2473072477623884.300.20460.3635

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2005-10-04T00:00:00ANONYMOUSv4_computers3000001575000---0.533--1.742%


P+1 Factoring results:
dateuseridcompidb1b2startfactorSmoothdigitsbits*ghz-days
2021-11-24T18:51:48ATHec2-P_110000002600000027P+1P-12476.4324.117


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2001-01-21T00:00:00Jocelyn Larouchev4_computers21252--2.06794e-5--
2001-01-21T00:00:00Jocelyn Larouchev4_computers21256--0.000--
2005-10-04T00:00:00ANONYMOUSv4_computers21266--0.509--
2009-04-11T13:06:00S485122Q67-W266267--0.515--
2009-04-11T21:50:00S485122Q67-W267268--1.030--
2012-02-21T23:16:00Ethan O'ConnorManual testing268269--2.061--
2012-02-21T23:16:00Ethan O'ConnorManual testing269270--4.121--
2020-08-06T19:17:01Sid & AndyGPU72_TF270271--8.242--
2020-08-06T19:37:01Sid & AndyGPU72_TF271272--16.48--
2021-01-04T18:40:08Sid & AndyManual testing272273--32.97--
2021-09-10T19:43:56TheJudgerManual testing273274--65.94--
2021-10-06T17:25:00TheJudgerManual testing274275--131.9--


ECM factoring results:
No ECM results for M29012587


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2005-11-27T00:00:00ANONYMOUSv4_computersF1093DCB8F62BA9328.85
2013-03-17T16:32:00ANONYMOUS3B2F59D8FA9362__28.85
2013-03-27T00:52:00ChuckChuck-ToshibaF1093DCB8F62BA9328.85


PRP results:
No PRP results for M29012587


P-1 factor-bounds graph:
B1 = 1000000, B2 = 26000000 (P+1 stage 2)
B1 = 1000000 (P+1 stage 1)
B1 = 300000, B2 = 1575000 (P-1 stage 2)
B1 = 300000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2021-11-24T18:51:48+00:00