is 2 168184823 - 1
has 50628677 decimal digits
takes 1,144.591 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
Actual277181.991263.6364 %10000004000000030.83604.3843 %212.827265.2306 %
Target278363.983564.1026 %1000000180000000106.10543.9214 %470.089065.5102 %
Difference-1-181.9923-0.4662 %--140000000-75.2694+0.4629%-257.2617-0.2796 %

Known prime factors (1 factor, 102.9 bits, 0.00006117% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
168184823927129802852617066368862945075131102.87127562826012327434157625
35 × 53 × 300733 × 550969 × 5476451
2021-11-155509695476451895,922,6058.085111.065

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2021-11-15Tucker KaoDozenal_Behemoth_Lab100000040000000231102.87130.843.997%


Trial Factoring results:
57585960616263646566676869707172737475767778
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2010-07-10Richard2632640.012
2011-02-16dsls22642650.022
2013-03-24Richardsvn_022652660.044
2015-06-04kevshawRanger2662670.089
2016-03-31XZTManual testing2672680.178
2016-09-04nate.andersManual testing2682690.355
2016-09-06Adam BuranManual testing2692700.711
2016-09-06DerekManual testing2702724.265
2016-09-12Smok_bmvManual testing2722735.687
2021-06-30Tucker KaoManual testing27327534.12
2021-08-23Tucker KaoManual testing27527645.50
2021-10-17Tucker KaoManual testing27627791.00


ECM factoring results:
No ECM results for M168184823


Lucas-Lehmer results:
No L-L results for M168184823


PRP results:
No PRP results for M168184823


CERT results:
No CERT results for M168184823


P-1 factor-bounds graph:
B1 = 1000000, B2 = 40000000 (P-1 stage 2)
B1 = 1000000 (P-1 stage 1)
104
105
106
104
105
106
107
108
TF factor-bounds graph:
277
276
275
273
272
270
269
268
267
266
265
264
this exponent TF target: 78
TF double-checked to: 67
250
260
270
280
290
2100
2110
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Last modified: 2024-03-13T02:15:48+00:00