is 2 47794609 - 1
has 14387611 decimal digits
takes 82.977 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
Actual27220.009263.8889 %----20.009263.8889 %
Target27220.009263.8889 %340000550000008.35274.1629 %28.361965.3922 %
Difference----340000-55000000-8.3527-4.1629 %-8.3527-1.5033 %

Known prime factors (1 factor, 74.0 bits, 0.00015488% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
47794609192095482526452764465612374.024200959361887920
24 × 3 × 5 × 251 × 10559 × 315937
2011-12-1810559315937107.080.06850.0809

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2011-12-18DRHManual testing2374.0242.0140.000%


Trial Factoring results:
57585960616263646566676869707172
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2008-03-29ANONYMOUSv4_computers212691.251
2011-10-25DubslowManual testing2692702.502
2011-12-10delta_tManual testing2702715.003
2011-12-13GregManual testing27127210.01


ECM factoring results:
No ECM results for M47794609


Lucas-Lehmer results:
No L-L results for M47794609


PRP results:
No PRP results for M47794609


CERT results:
No CERT results for M47794609


P-1 factor-bounds graph:
103
104
105
103
104
105
106
TF factor-bounds graph:
272
271
270
269
this exponent TF target: 72
TF double-checked to: 67
250
260
270
280
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Last modified: 2024-03-13T02:15:48+00:00