is 2 740780149 - 1
has 222997046 decimal digits
takes 25,618.647 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
Actual2670.040155.2239 %----0.040155.2239 %
Target2845,288.839964.2857 %400000010000000002,921.73834.3205 %8,210.578265.8288 %
Difference-17-5,288.7998-9.0618 %-4000000-1000000000-2,921.7383-4.3205 %-8,210.5381-10.6049 %

Known prime factors (2 factors, 127.7 bits, 0.00001724% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
740780149158060971052158141672063.77710668547967
7 × 11 × 41 × 3379331
2010-08-144133793310.00229.234617.244
740780149173413255027129780872063.91111704772007
32 × 317 × 1471 × 2789
2010-08-14147127890.00220.07740.1501

1 Composite Factors:
P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2010-08-14Carsten KossendeyManual testing39127.688-0.000%


Trial Factoring results:
57585960616263646566676869707172737475767778798081828384
No TF results for M740780149


ECM factoring results:
No ECM results for M740780149


Lucas-Lehmer results:
No L-L results for M740780149


PRP results:
No PRP results for M740780149


CERT results:
No CERT results for M740780149


P-1 factor-bounds graph:
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104
100
101
102
103
104
105
106
107
TF factor-bounds graph:
this exponent TF target: 84
TF double-checked to: 67
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Last modified: 2024-03-13T02:15:48+00:00