is 2 697881539 - 1
has 210083277 decimal digits
takes 22,624.609 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
Actual2732.740958.9041%----2.740958.9041%0.0000%
PrimeNet280350.871262.5000%2600000180000000576.55865.6319%927.429964.6119%2.1119%
GPU722845,613.943664.2857%4000000180000000638.78364.2187%6,252.727265.7924%1.5067%
Difference-11-5,611.2027-5.3816%-4000000-180000000-638.7836-4.2187%-6,249.9863-6.8883%-6.8883%

Known prime factors (1 factor, 64.6 bits, 0.00000926% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
697881539288514319938594709512064.64520670723025
52 × 826828921
2012-01-25258268289210.00762,117.63,955.1

P-1 results:
No P-1 results for M697881539


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2012-01-25T14:36:00ANONYMOUSManual testing??64.645200.00346,3640.005
2012-01-26T14:41:00laleraManual testing??64.645200.00346,3640.005
2010-03-17T00:00:00lindedv4_computers261262--0.000--
2010-07-14T17:30:00Architects Cubedm1_74263264--0.003--
2022-08-12T16:27:08LordJuliusManual testing2127064.645200.00846,3640.016
2022-08-12T16:27:08LordJuliusManual testing270271--0.343--
2022-08-12T16:27:08LordJuliusManual testing271272--0.685--
2022-08-12T16:27:08LordJuliusManual testing272273--1.371--


ECM factoring results:
No ECM results for M697881539


Lucas-Lehmer results:
No L-L results for M697881539


PRP results:
No PRP results for M697881539


P-1 factor-bounds graph:
100
101
102
100
101
102
103
104
105
106
107
108
109
TF factor-bounds graph:
273
272
271
270
264
262
2
250
260
270
280
290
2100
Last modified: 2022-08-12T16:27:08+00:00