is 2 64203229 - 1
has 19327098 decimal digits
takes 155.737 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
Actual27459.589964.8649%575000103500003.89563.7457%63.485566.1809%1.3161%
PrimeNet2703.721862.8571%280000120000003.23075.2157%6.952564.7944%1.9372%
GPU7227459.589964.8649%400000140000004.01313.7924%63.603066.1973%1.3325%
Difference---+175000-3650000-0.1175-0.0468%-0.1175-0.0164%-0.0164%

Known prime factors (1 factor, 90.3 bits, 0.00014072% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
6420322915753543545395563391641524332890.34812268497854987607704
23 × 53 × 191 × 2003 × 58657 × 1289411
2013-06-155865712894117,493,0850.44220.4615

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2013-06-15T21:28:00Jwb52zClay575000103500002890.3483.896311.57.7913.746%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2003-08-25T00:00:00ANONYMOUSv4_computers21259--0.001--
2004-01-18T00:00:00AxelFoxv4_computers21260--0.002--
2022-03-30T08:08:04LordJuliusManual testing260263--0.022--
2009-03-09T00:45:00Sturle Sundegonsha.ifi263264--0.031--
2009-10-03T15:01:00unconnectedwinxp-E4600264265--0.058--
2009-10-03T19:02:00ANONYMOUS265266--0.116--
2009-10-04T21:20:00Sturle Sundegooch.ifi266267--0.233--
2009-10-05T04:21:00André Jordimacmini-aj267268--0.466--
2009-10-09T07:37:00David HruskaDesktopII268269--0.931--
2012-05-17T06:00:00omiXorpLLB17-990-07269270--1.862--
2013-04-27T22:40:00Jerry HallettManual testing270271--3.725--
2013-04-27T22:40:00Jerry HallettManual testing271272--7.449--
2013-04-27T22:40:00Jerry HallettManual testing272273--14.90--
2013-04-27T22:40:00Jerry HallettManual testing273274--29.80--


ECM factoring results:
No ECM results for M64203229


Lucas-Lehmer results:
No L-L results for M64203229


PRP results:
No PRP results for M64203229


P-1 factor-bounds graph:
B1 = 575000, B2 = 10350000 (P-1 stage 2)
B1 = 575000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2022-03-30T08:08:04+00:00