is 2 50690383 - 1
has 15259326 decimal digits
takes 92.862 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
Actual2704.713962.8571 %----4.713962.8571 %
Target27337.735864.3836 %340000550000008.81373.7928 %46.549665.7344 %
Difference-3-33.0219-1.5264 %-340000-55000000-8.8137-3.7928 %-41.8357-2.8773 %

Known prime factors (1 factor, 70.0 bits, 0.00013816% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
5069038312094004200643182699192270.03511929288639073
13 × 522947 × 1754743
2010-10-1852294717547434.82931.56742.8271

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2010-10-18ecklemanlewis-desktop2270.0354.0070.000%


Trial Factoring results:
5758596061626364656667686970717273
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
1999-10-15ANONYMOUSv4_computers212532.37000e-5
2000-02-09ANONYMOUSv4_computers212544.73000e-5
2000-04-19ANONYMOUSv4_computers212560.000
2001-04-21ANONYMOUSv4_computers212570.000
2002-01-15ANONYMOUSv4_computers212580.001
2003-08-25ANONYMOUSv4_computers212590.001
2003-11-08ANONYMOUSv4_computers212600.002
2008-09-12DerekManual testing212640.037
2008-10-27ahmeraliv4_computers212704.644
2008-11-18ahmeraliv4_computers212702.359


ECM factoring results:
No ECM results for M50690383


Lucas-Lehmer results:
No L-L results for M50690383


PRP results:
No PRP results for M50690383


CERT results:
No CERT results for M50690383


P-1 factor-bounds graph:
104
105
106
104
105
106
107
TF factor-bounds graph:
270
264
260
259
258
257
256
254
253
this exponent TF target: 73
TF double-checked to: 67
250
260
270
280
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Last modified: 2024-03-13T02:15:48+00:00