is 2 70236259 - 1
has 21143221 decimal digits
takes 187.784 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
Actual27327.234463.0137 %6850006850002.65561.9544 %29.890063.7365 %
Target27454.471463.5135 %4500008000000018.54674.0005 %73.018164.9732 %
Difference-1-27.2369-0.4998 %+235000-79315000-15.8911-2.0462 %-43.1281-1.2366 %

Known prime factors (1 factor, 74.9 bits, 0.00010658% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
70236259342460593770189765394712374.858243791880893165
5 × 11 × 23 × 53 × 127 × 331 × 86501
2014-10-083318650161.6050.01950.0341

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2014-10-08NickOfTimeHomeWorkstation68500068500012374.8582.6561.744%


Trial Factoring results:
575859606162636465666768697071727374
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2007-07-24Amperiov4_computers212630.014
2008-11-28Wojciech FlorekManual testing212640.028
2009-09-11tscv4_computers212703.351
2009-10-25tscv4_computers212701.702
2014-04-02HBendtzManual testing2702713.405
2014-09-07srow7Manual testing2712726.809
2014-09-29RichD0Manual testing27227313.62


ECM factoring results:
No ECM results for M70236259


Lucas-Lehmer results:
No L-L results for M70236259


PRP results:
No PRP results for M70236259


CERT results:
No CERT results for M70236259


P-1 factor-bounds graph:
B1 = 685000 (P-1 stage 1)
101
102
103
104
105
106
101
102
103
104
105
106
TF factor-bounds graph:
273
272
271
270
264
263
this exponent TF target: 74
TF double-checked to: 67
250
260
270
280
JSON version of this page
Last modified: 2024-03-13T02:15:48+00:00