is 2 332222731 - 1
has 100009008 decimal digits
takes 4,941.813 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
Actual278184.263562.8205 %4420000442000095.33392.8297 %279.597363.8726 %
Target2811,474.111364.1975 %1900000400000000508.79794.0317 %1,982.909265.6410 %
Difference-3-1,289.8479-1.3770 %+2520000-395580000-413.4640-1.2020 %-1,703.3119-1.7684 %

Known prime factors (1 factor, 88.4 bits, 0.00002660% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
3322227313998233336296028950302682312788.369601739881594078665
3 × 5 × 59 × 28219 × 63211 × 381181
2015-09-2863211381181188,6861.73702.7747

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2015-09-28DonRoberDad_s_Desktop4420000442000012788.369101.02.112%


Trial Factoring results:
57585960616263646566676869707172737475767778798081
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2023-10-18James HeinrichManual testing267268
2008-12-17Team_Inspectorthumbelina2682690.180
2008-12-20madda2692700.360
2008-12-20madda2702710.720
2008-12-21madda2712721.440
2008-12-22madda2722732.879
2008-12-31madda2732745.758
2009-01-14madda27427511.52
2011-03-05Sebastian HornbostelManual testing27527623.03
2015-08-11srow7Manual testing27627746.07
2015-08-12srow7Manual testing27727892.13


ECM factoring results:
No ECM results for M332222731


Lucas-Lehmer results:
No L-L results for M332222731


PRP results:
No PRP results for M332222731


CERT results:
No CERT results for M332222731


P-1 factor-bounds graph:
B1 = 4420000 (P-1 stage 1)
103
104
105
106
107
103
104
105
106
107
TF factor-bounds graph:
278
277
276
275
274
273
272
271
270
269
268
this exponent TF target: 81
TF double-checked to: 67
250
260
270
280
290
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Last modified: 2024-03-13T02:15:48+00:00