is 2 92850217 - 1
has 27950701 decimal digits
takes 336.324 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
Actual277329.651064.9351 %7100007100003.72911.3055 %333.380165.3928 %
Target27582.411364.0000 %60000011000000034.45684.1457 %116.868165.4925 %
Difference+2+247.2397+0.9351 %+110000-109290000-30.7277-2.8402 %+216.5120-0.0996 %

Known prime factors (1 factor, 83.4 bits, 0.00008984% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
92850217129413552331392920828665592683.42069689418351813287
37 × 61 × 83 × 1613 × 2557 × 90197
2019-08-2125579019735,2860.03850.0482

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2019-08-21Ryan PropperManual testing71000071000012683.4203.7291.646%


Trial Factoring results:
575859606162636465666768697071727374757677
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2010-12-29Architects Cubedm1_fw2642650.040
2011-06-13kdgehmanManual testing26527210.22
2019-02-20Carsten KossendeyManual testing27227310.30
2019-04-06ktonyManual testing27327420.60
2019-08-01Strolling JellyfishManual testing274276123.6
2019-08-15Luigi MorelliManual testing276277164.8


ECM factoring results:
No ECM results for M92850217


Lucas-Lehmer results:
No L-L results for M92850217


PRP results:
No PRP results for M92850217


CERT results:
No CERT results for M92850217


P-1 factor-bounds graph:
B1 = 710000 (P-1 stage 1)
102
103
104
105
106
102
103
104
105
106
TF factor-bounds graph:
277
276
274
273
272
265
this exponent TF target: 75
TF double-checked to: 67
250
260
270
280
290
JSON version of this page
Last modified: 2024-03-13T02:15:48+00:00