is 2 74068363 - 1
has 22296799 decimal digits
takes 204.777 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
Actual275103.308764.0000 %640000128000005.22153.6590 %108.530365.3172 %
Target27451.653263.5135 %5000008500000020.46024.1319 %72.113365.0211 %
Difference+1+51.6556+0.4865 %+140000-72200000-15.2386-0.4729 %+36.4169+0.2961 %

Known prime factors (1 factor, 90.1 bits, 0.00012167% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
7406836313473709785456428338915931592890.1229095455360243636233
3 × 79 × 61153 × 224461 × 2795873
2015-05-1722446127958735,080,1461.46141.8313

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2015-05-17TheJudgerManual testing640000128000001222890.1225.3254.032%


Trial Factoring results:
57585960616263646566676869707172737475
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2008-09-12lycornManual testing212640.025
2010-08-19Matthijs Coster2642650.050
2010-08-22korvalenovoLAP12652660.101
2010-08-26korvalenovoLAP12662670.202
2010-08-30David HruskaDesktopII2672680.404
2010-09-06Eidan Spiegelshitrit2682690.807
2012-10-16oodaira052692701.614
2013-05-11ramgeisManual testing2702713.228
2015-04-05LaurVManual testing2712726.457
2015-05-08BdotManual testing27227312.91
2015-05-111997rj7Manual testing27327577.48


ECM factoring results:
No ECM results for M74068363


Lucas-Lehmer results:
No L-L results for M74068363


PRP results:
No PRP results for M74068363


CERT results:
No CERT results for M74068363


P-1 factor-bounds graph:
B1 = 640000, B2 = 12800000 (P-1 stage 2)
B1 = 640000 (P-1 stage 1)
104
105
106
104
105
106
107
108
TF factor-bounds graph:
275
273
272
271
270
269
268
267
266
265
264
this exponent TF target: 74
TF double-checked to: 67
250
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290
2100
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Last modified: 2024-03-13T02:15:48+00:00