is 2 7401077 - 1
has 2227947 decimal digits
takes 1.614 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
Actual2674.014865.6716 %263000139660000.31925.4679 %4.334067.5487 %
Target2674.014865.6716 %5000055000000.10972.4321 %4.124566.5066 %
Difference---+213000+8466000+0.2095+3.0357%+0.2095+1.0421 %

Known prime factors (2 factors, 93.7 bits, 0.00126537% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
7401077601574340714011445.7744064100
22 × 3 × 52 × 19 × 23 × 31
-25311.061e-68.008e-61.609e-5
74010772584472074726331547.87717460108
22 × 32 × 53 × 9151
2014-03-215391513.152e-60.00020.0003

1 Composite Factors:
P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2021-04-11Dylan Delgadolaptop-ryzen737002630001396600022993.6510.3195.468%


Trial Factoring results:
5758596061626364656667
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2014-03-21TJAOIManual testing??
47.877
15


ECM factoring results:
No ECM results for M7401077


Lucas-Lehmer results:
No L-L results for M7401077


PRP results:
dateuseridcompidcofactorsres64
2018-03-13treborDesktop
60157434071401
258447207472633
7BED61966ED277C8
2019-05-27kkmrkkblmbrbkc5.large
60157434071401
258447207472633
7BED61966ED277C8


CERT results:
No CERT results for M7401077


P-1 factor-bounds graph:
B1 = 263000, B2 = 13966000 (P-1 stage 2)
B1 = 263000 (P-1 stage 1)
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TF factor-bounds graph:
this exponent TF target: 67
TF double-checked to: 67
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Last modified: 2024-03-13T02:15:48+00:00