is 2 24865741 - 1
has 7485334 decimal digits
takes 20.169 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
Actual2671.195062.6866%----1.195062.6866%0.0000%
PrimeNet2660.593962.1212%11000040000000.37864.9739%0.972664.0053%1.8841%
GPU722709.609664.2857%18000050000000.52063.6576%10.130265.5920%1.3063%
Difference-3-8.4147-1.5991%-180000-5000000-0.5206-3.6576%-8.9352-2.9054%-2.9054%

Known prime factors (3 factors, 171.5 bits, 0.00068952% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
248657414177854275411691548.5708400824
23 × 43 × 24421
-43244212.051e-60.00160.0029
2486574110640944317758299991959.88421396797139
3 × 29 × 89 × 2763373
2015-12-218927633730.00420.17720.3307
2486574192238202216411265291963.00007185472458304
26 × 3 × 7 × 311 × 443731
2016-11-243114437310.12300.02880.0531

4 Composite Factors:
exponentprime factorscomposite factordigitsbits*
2486574144456314712364242396131871772883133108.454
24865741385357767486121825320459968557240134111.570
24865741981501573754962485340727497235294347137122.884
2486574141005705462354722047445637115244492722518671822575
99
52171.454
P-1 results:
No P-1 results for M24865741


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2015-12-21T12:19:41TJAOIManual testing259260*59.884190.00141.680.002
2022-06-24T05:19:19LordJuliusManual testing260263--0.058--
2016-11-24T17:15:57TJAOIManual testing263264*63.00007190.05941.550.121


ECM factoring results:
No ECM results for M24865741


Lucas-Lehmer results:
No L-L results for M24865741


PRP results:
No PRP results for M24865741


P-1 factor-bounds graph:
100
101
102
103
100
101
102
103
104
105
106
107
TF factor-bounds graph:
267
264
263
260
240
250
260
270
280
290
2100
Last modified: 2022-06-24T05:19:19+00:00