is 2 36961567 - 1
has 11126541 decimal digits
takes 46.202 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-LE0241B2CB73C3F18double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual27112.934563.3803 %500000100000001.84444.5825 %14.778865.0584 %
Target27112.934563.3803 %260000400000004.39564.0339 %17.330064.8575 %
Difference---+240000-30000000-2.5512+0.5487%-2.5512+0.2009 %

Known prime factors (1 factor, 77.8 bits, 0.00021062% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
369615672721444934399283143719192477.8493681452323705977
32 × 4231 × 91097 × 1061279
2015-12-299109710612791,085.70.26090.3360

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2008-02-03ANONYMOUSv4_computers640000640000--1.1602.171%
2015-12-29HBendtzManual testing500000100000001222477.8491.9434.583%


Trial Factoring results:
575859606162636465666768697071
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2006-03-28TheJudgerv4_computers212670.404
2012-04-25Carsten KossendeyManual testing2672680.809
2013-06-03Carsten KossendeyManual testing2682691.617
2014-03-14LaurVManual testing2692719.70


ECM factoring results:
No ECM results for M36961567


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2008-05-10ANONYMOUSv4_computersE0241B2CB73C3F1846.20


PRP results:
No PRP results for M36961567


CERT results:
No CERT results for M36961567


P-1 factor-bounds graph:
B1 = 500000, B2 = 10000000 (P-1 stage 2)
B1 = 640000 (P-1 stage 1)
B1 = 500000 (P-1 stage 1)
103
104
105
106
103
104
105
106
107
TF factor-bounds graph:
271
269
268
267
this exponent TF target: 71
TF double-checked to: 67
250
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280
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Last modified: 2024-03-13T02:15:48+00:00