is 2 697884721 - 1
has 210084235 decimal digits
takes 22,624.712 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
-unknown- primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual2670.042655.2239%----0.042655.2239%0.0000%
PrimeNet280350.869662.5000%2600000180000000576.55865.6319%927.428364.6120%2.1120%
GPU722845,613.918064.2857%4000000180000000638.78364.2187%6,252.701665.7924%1.5067%
Difference-17-5,613.8754-9.0618%-4000000-180000000-638.7836-4.2187%-6,252.6591-10.5685%-10.5685%

Known prime factors (2 factors, 130.4 bits, 0.00001869% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
697884721281810056114155717672064.61120190301323
3 × 29 × 59 × 3933431
2012-01-255939334310.005610.07718.815
697884721647018681658315023772065.81046355699028
22 × 3 × 683 × 5655893
2019-05-1668356558930.011414.51627.055

1 Composite Factors:
exponentprime factorscomposite factordigitsbits*
697884721182336370985036811664867248381407459015940130.422
P-1 results:
No P-1 results for M697884721


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2012-01-25T14:36:00ANONYMOUSManual testing??64.611200.00046,3640.001
2012-01-26T14:41:00laleraManual testing??64.611200.00046,3640.001
2010-03-17T00:00:00lindedv4_computers261262--0.000--
TF assumed completed to 67 but no detailed record exists
2010-06-25T07:50:00Architects Cubedm1_24263264--0.003--
2022-03-13T11:21:20James HeinrichManual testing26426564.611200.00046,3640.001
2019-05-16T12:33:15TJAOIManual testing265266*65.810200.00146,3640.002


ECM factoring results:
No ECM results for M697884721


Lucas-Lehmer results:
No L-L results for M697884721


PRP results:
No PRP results for M697884721


P-1 factor-bounds graph:
100
101
102
103
100
101
102
103
104
105
106
107
TF factor-bounds graph:
267
266
265
264
262
2
250
260
270
280
290
2100
Last modified: 2022-03-13T11:21:20+00:00