is 2 8154787 - 1
has 2454836 decimal digits
takes 2.129 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
Actual2687.309266.1765%----7.309266.1765%0.0000%
PrimeNet2630.195763.4921%360009000000.03153.6167%0.227264.8124%1.3204%
GPU722673.643765.6716%5500013000000.04652.6241%3.690266.5725%0.9008%
Difference+1+3.6654+0.5048%-55000-1300000-0.0465-2.6241%+3.6189-0.3960%-0.3960%

Known prime factors (1 factor, 28.0 bits, 0.00034393% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
8154787277262759928.04717
17
-1174.401e-127.087e-77.705e-7

P-1 results:
No P-1 results for M8154787


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2022-06-21T17:06:48FlaukrotistManual testing267268--3.665--


ECM factoring results:
No ECM results for M8154787


Lucas-Lehmer results:
No L-L results for M8154787


PRP results:
dateuseridcompidcofactorsres64PRP
2018-09-01T01:24:17Oliver KruseGTX-3
277262759
10BF01AC8C45BE__no
2020-02-23T10:39:27daveward2005Davy
277262759
10BF01AC8C45BE9Eno


P-1 factor-bounds graph:
100
101
100
101
102
103
TF factor-bounds graph:
268
220
230
240
250
260
270
280
290
2100
Last modified: 2022-06-21T17:06:48+00:00