is 2 27304099 - 1
has 8219353 decimal digits
takes 25.275 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L74CDF10BC007F443double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual27235.025365.2778%30500040412500.68263.0864%35.707966.3495%1.0717%
PrimeNet2660.540962.1212%12000045000000.48145.2165%1.022364.0972%1.9760%
GPU722708.751564.2857%20000060000000.69263.9069%9.444165.6811%1.3953%
Difference+2+26.2738+0.9921%+105000-1958750-0.0100-0.8205%+26.2638+0.6684%+0.6684%

Known prime factors (1 factor, 67.0 bits, 0.00024549% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
273040991506750638634788480872167.0302759202269657
2759202269657
2011-07-14127592022696571.6325201,780376,869

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2005-08-16T00:00:00liceomajoranaorvietov4_computers3050004041250---0.683--3.086%
2011-07-14T05:08:00Carsten KossendeyManual testing30500040412502167.0300.68350.551.3653.086%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2000-11-05T00:00:00Jocelyn Larouchev4_computers21254--8.78933e-5--
2001-08-18T00:00:00Net_Forcev4_computers21256--0.000--
2004-04-09T00:00:00ANONYMOUSv4_computers21261--0.011--
2004-07-13T00:00:00ANONYMOUSv4_computers21262--0.023--
2004-10-18T00:00:00ANONYMOUSv4_computers21267--1.088--
2011-07-14T05:07:00Carsten KossendeyManual testing267271--16.42--
2022-02-13T14:28:07masserManual testing271272--17.52--


ECM factoring results:
No ECM results for M27304099


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2005-10-04T00:00:00liceomajoranaorvietov4_computers74CDF10BC007F44325.28


PRP results:
No PRP results for M27304099


P-1 factor-bounds graph:
B1 = 305000, B2 = 4041250 (P-1 stage 2)
B1 = 305000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2022-02-13T14:28:07+00:00