is 2 49178629 - 1
has 14804243 decimal digits
takes 90.093 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
Actual2719.721363.3803 %----9.721363.3803 %
Target27338.895864.3836 %320000500000008.03993.6749 %46.935765.6924 %
Difference-2-29.1746-1.0033 %-320000-50000000-8.0399-3.6749 %-37.2145-2.3122 %

Known prime factors (1 factor, 79.8 bits, 0.00016225% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
4917862910451556661060861005710172579.79010626116337099252
22 × 32 × 112 × 97 × 12721 × 1976941
2011-12-011272119769413,272.00.31810.5344

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2011-12-01monstharp2579.7902.7530.000%


Trial Factoring results:
5758596061626364656667686970717273
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2003-09-29Team Prime Ribv4_computers212590.001
2007-07-241997rj7v4_computers212630.020
2008-06-03ANONYMOUSManual testing212640.038
2008-07-25ahmeraliv4_computers212702.431
2011-11-24Stef42Manual testing2702714.862


ECM factoring results:
No ECM results for M49178629


Lucas-Lehmer results:
No L-L results for M49178629


PRP results:
No PRP results for M49178629


CERT results:
No CERT results for M49178629


P-1 factor-bounds graph:
103
104
105
103
104
105
106
107
TF factor-bounds graph:
271
270
264
263
259
this exponent TF target: 73
TF double-checked to: 67
250
260
270
280
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Last modified: 2024-03-13T02:15:48+00:00