is 2 50228201 - 1
has 15120196 decimal digits
takes 92.015 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual2692.376962.3188 %----2.376962.3188 %
Target27338.083164.3836 %340000550000008.81373.7883 %46.896865.7328 %
Difference-4-35.7062-2.0647 %-340000-55000000-8.8137-3.7883 %-44.5199-3.4140 %

Known prime factors (1 factor, 70.1 bits, 0.00013965% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
5022820113030976321536284004572270.14212971772890628
22 × 3 × 100391 × 10767709
2011-02-06100391107677099.13481.81052.9105

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2011-02-06toadproxie2270.1424.3320.000%


Trial Factoring results:
5758596061626364656667686970717273
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
1999-10-07ANONYMOUSv4_computers212532.39000e-5
2000-02-09ANONYMOUSv4_computers212544.78000e-5
2000-04-05ANONYMOUSv4_computers212560.000
2001-04-01ANONYMOUSv4_computers212570.000
2001-12-08ANONYMOUSv4_computers212580.001
2003-08-08ANONYMOUSv4_computers212590.001
2003-11-08ANONYMOUSv4_computers212600.002
2008-10-14Colin Rattray-Woodv4_computers212691.190


ECM factoring results:
No ECM results for M50228201


Lucas-Lehmer results:
No L-L results for M50228201


PRP results:
No PRP results for M50228201


CERT results:
No CERT results for M50228201


P-1 factor-bounds graph:
104
105
106
104
105
106
107
108
TF factor-bounds graph:
269
260
259
258
257
256
254
253
this exponent TF target: 73
TF double-checked to: 67
250
260
270
280
JSON version of this page
Last modified: 2024-03-13T02:15:48+00:00