is 2 69277711 - 1
has 20854670 decimal digits
takes 185.222 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual27455.225163.5135%755000179312506.55484.3564%61.779965.1030%
Target27455.225163.5135%450000150000004.81773.9448%60.042864.9528%
Difference---+305000+2931250+1.7371+0.4116%+1.7371+0.1502%

Known prime factors (1 factor, 73.8 bits, 0.00010659% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
69277711169165747547093595275932373.841122092477584236
22 × 30523119396059
2014-06-0343052311939605929.0226,446,94912,041,106

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2013-12-14exhopp900775500017931250---6.555--4.356%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2000-10-22Jocelyn Larouchev4_computers21254--3.46410e-5--
2000-10-28Jocelyn Larouchev4_computers21256--0.000--
2001-06-03Jocelyn Larouchev4_computers21257--0.000--
2003-12-13ANONYMOUSv4_computers21262--0.009--
2022-05-21LordJuliusManual testing262265--0.096--
2010-02-10subgeniusHDO-c1265266--0.108--
2010-02-23manskyJacek266267--0.216--
2010-02-26unconnectedX3210-gr267268--0.431--
2010-03-02Donna Nobleq8200v2268269--0.863--
2012-04-30NBBlackBird269270--1.726--
2012-08-04SWL551Manual testing270271--3.452--
2014-05-30brilongManual testing271272--6.903--
2014-05-30brilongManual testing272273--13.81--
2014-06-03brilongManual testing27327473.841231.411375.32.858


ECM factoring results:
No ECM results for M69277711


Lucas-Lehmer results:
No L-L results for M69277711


PRP results:
No PRP results for M69277711


P-1 factor-bounds graph:
B1 = 755000, B2 = 17931250 (P-1 stage 2)
B1 = 755000 (P-1 stage 1)
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TF factor-bounds graph:
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this exponent TF target: 74
TF double-checked to: 67.7
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Last modified: 2023-03-25T13:08:14+00:00