is 2 50271379 - 1
has 15133194 decimal digits
takes 92.094 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
Actual2704.753262.8571 %----4.753262.8571 %
Target27338.050464.3836 %340000550000008.81373.7887 %46.864165.7330 %
Difference-3-33.2972-1.5264 %-340000-55000000-8.8137-3.7887 %-42.1109-2.8758 %

Known prime factors (1 factor, 104.3 bits, 0.00020746% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
502713792488520240300166991237449584464132104.295247508651025881644428080
24 × 5 × 43 × 4099 × 19681 × 285251 × 3126653
2010-04-3028525131266533.355e+91.16891.5421

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2010-04-30FCG PrimesNEWCHEROKEE32104.2952.6510.000%


Trial Factoring results:
5758596061626364656667686970717273
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
1999-10-07ANONYMOUSv4_computers212532.39000e-5
2000-02-09ANONYMOUSv4_computers212544.77000e-5
2000-04-05ANONYMOUSv4_computers212560.000
2001-04-01ANONYMOUSv4_computers212570.000
2001-12-22ANONYMOUSv4_computers212580.001
2003-08-08ANONYMOUSv4_computers212590.001
2003-11-08ANONYMOUSv4_computers212600.002
2008-09-23ahmeraliv4_computers212702.378


ECM factoring results:
No ECM results for M50271379


Lucas-Lehmer results:
No L-L results for M50271379


PRP results:
No PRP results for M50271379


CERT results:
No CERT results for M50271379


P-1 factor-bounds graph:
104
105
106
104
105
106
107
TF factor-bounds graph:
270
260
259
258
257
256
254
253
this exponent TF target: 73
TF double-checked to: 67
250
260
270
280
290
2100
2110
JSON version of this page
Last modified: 2024-03-13T02:15:48+00:00