is 2 253576019 - 1
has 76333988 decimal digits
takes 2,761.161 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
Actual2670.117258.2090%----0.117258.2090%0.0000%
PrimeNet27660.352763.1579%10000006500000070.84315.4600%131.195865.1695%2.0116%
GPU72280965.653565.0000%15000006500000078.30744.0064%1,043.960966.4023%1.4023%
Difference-13-965.5363-6.7910%-1500000-65000000-78.3074-4.0064%-1,043.8437-8.1933%-8.1933%

Known prime factors (3 factors, 180.1 bits, 0.00007102% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
253576019347806191327219191754.94968580261
32 × 17 × 97 × 4621		2008-01-039746211.147e-50.00540.0074
2535760192344526504711840171857.702462292632
23 × 32 × 6420731		2015-07-09964207310.00015.523410.316
2535760192007813570761531820712167.444395899734265
5 × 7 × 509 × 22222831		2022-08-05509222228310.137719.12435.704

4 Composite Factors:
exponentprime factorscomposite factordigitsbits*
253576019815440834069542745933831993836862334112.651
253576019698329990941672482182036141141951424937122.393
2535760194707372133170533170833166938554615920738125.146
25357601916372531727979303920312700853939725196152462460325
58233		55180.095
P-1 results:
No P-1 results for M253576019


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2015-07-09T10:49:00TJAOIManual testing257258*57.702182.57618e-55,6785.29794e-5
2022-08-05T09:29:48TJAOIManual testing267268*67.444210.0215,6780.042


ECM factoring results:
No ECM results for M253576019


Lucas-Lehmer results:
No L-L results for M253576019


PRP results:
No PRP results for M253576019


P-1 factor-bounds graph:
100
101
102
103
100
101
102
103
104
105
106
107
108
TF factor-bounds graph:
268
267
258
250
260
270
280
290
2100
Last modified: 2022-08-05T09:29:48+00:00