is 2 93738661 - 1
has 28218149 decimal digits
takes 339.542 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
Actual277326.526664.9351 %7200007200003.78161.3157 %330.308265.3964 %
Target27581.630264.0000 %60000011000000034.45684.1505 %116.087065.4942 %
Difference+2+244.8964+0.9351 %+120000-109280000-30.6752-2.8348 %+214.2212-0.0978 %

Known prime factors (1 factor, 83.1 bits, 0.00008870% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
93738661106864673312033987802751272683.14457001386712806783
32 × 13 × 103 × 1483 × 26141 × 122011
2019-09-092614112201131,7670.16470.2794

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2019-09-09Ryan PropperManual testing72000072000012683.1443.7821.658%


Trial Factoring results:
575859606162636465666768697071727374757677
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2011-01-11Architects Cubedm1_632642650.040
2013-12-29sasakiManual testing2652670.239
2014-04-10ANONYMOUSNFcddU8lbxgc2672680.319
2014-04-10hkskypManual testing2682701.913
2014-12-21Preben SManual testing2702712.551
2018-08-04Andrew LuebkeManual testing2712725.102
2019-03-13DerekManual testing27227310.20
2019-06-08gcardonaManual testing27327420.41
2019-09-25Johan ViljoenManual testing27427540.82
2019-09-08TheJudgerManual testing274277285.7


ECM factoring results:
No ECM results for M93738661


Lucas-Lehmer results:
No L-L results for M93738661


PRP results:
No PRP results for M93738661


CERT results:
No CERT results for M93738661


P-1 factor-bounds graph:
B1 = 720000 (P-1 stage 1)
103
104
105
106
103
104
105
106
TF factor-bounds graph:
277
275
274
273
272
271
270
268
267
265
this exponent TF target: 75
TF double-checked to: 67
250
260
270
280
290
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Last modified: 2024-03-13T02:15:48+00:00