is 2 29956981 - 1
has 9017950 decimal digits
takes 31.205 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
Actual2693.985363.7681%200000712893306.15216.6315%10.137466.1708%2.4027%
PrimeNet2670.991962.6866%13000050000000.59714.9071%1.589064.5176%1.8310%
GPU7227115.958864.7887%20000060000000.77943.5591%16.738266.0420%1.2532%
Difference-2-11.9736-1.0206%-+65289330+5.3728+3.0723%-6.6008+0.1289%+1.1495%

Known prime factors (4 factors, 170.3 bits, 0.00056835% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
29956981107245991991133.320179
179
-11793.968e-111.616e-52.758e-5
299569811227037941771236.8362048
211
2008-09-09204820484.411e-100.00310.0063
299569816184918297271239.17010323
32 × 31 × 37
2008-09-0931373.018e-94.732e-59.529e-5
2995698122026499717162304171960.93436763550568
23 × 33 × 170201623
2016-03-16271702016230.007614.00626.160

11 Composite Factors:
exponentprime factorscomposite factordigitsbits*
2995698113159490127449150642232270.157
2995698166330769816782285886732272.490
29956981758912941749779380996792376.006
29956981236225381223452573854576359832994.254
299569812702735087734432085378748818093097.770
29956981136232101125489614903346220615931100.104
2995698181390371272004176078648898555712133109.327
29956981289857505570258850675728291861102107099140131.091
299569811461034682608512922475245340036958426664141133.424
2995698116716195696802327755451186403024227773614342136.940
2995698117927449898025349110744726158147332435849747511494
57
52170.261
P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2022-05-24T12:06:26masserManual testing20000071289330-
skipped known factor: 10724599199
skipped known factor: 122703794177
skipped known factor: 618491829727
--6.152--6.631%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2008-09-09T01:41:00Will EdgingtonManual testing??36.836121.35467e-1064.512.80067e-10
2008-09-09T01:41:00Will EdgingtonManual testing??39.170125.73089e-1064.511.18481e-9
2016-03-16T12:54:15TJAOIManual testing260261*60.934190.00264.500.005
2022-09-25T06:23:24LordJuliusManual testing2126533.320113.96793e-1164.518.20338e-11
2022-09-25T06:23:24LordJuliusManual testing2126536.836124.41061e-1064.519.11859e-10
2022-09-25T06:23:24LordJuliusManual testing2126560.934190.00864.500.016
2022-09-25T06:23:24LordJuliusManual testing2126539.170123.01784e-964.516.23915e-9
2022-09-25T06:23:24LordJuliusManual testing265266--0.249--
2022-09-25T06:23:24LordJuliusManual testing266267--0.499--
2022-09-22T23:27:00masserManual testing267269--2.993--


ECM factoring results:
No ECM results for M29956981


Lucas-Lehmer results:
No L-L results for M29956981


PRP results:
No PRP results for M29956981


P-1 factor-bounds graph:
B1 = 200000, B2 = 71289330 (P-1 stage 2)
B1 = 200000 (P-1 stage 1)
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100
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TF factor-bounds graph:
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2
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2100
Last modified: 2022-09-25T06:23:24+00:00