is 2 23644867 - 1
has 7117815 decimal digits
takes 19.179 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L164E0DD44B9D902Cdouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual274161.805366.2162%1647790494337095.00005.0514%166.805367.9228%1.7066%
PrimeNet2660.624662.1212%11000036000000.35304.8398%0.977663.9545%1.8332%
GPU7227010.105864.2857%16000045000000.46633.4877%10.572165.5313%1.2456%
Difference+4+151.6995+1.9305%+1487790+44933709+4.5337+1.5637%+156.2332+2.3915%+0.4610%

Known prime factors (1 factor, 133.8 bits, 0.00056608% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
236448671960740996463276427886271206846897730880941133.849414622970064343442466026813948012
22 × 23 × 3673 × 5443 × 210019 × 297841 × 648917 × 5553593
2021-12-2464891755535936.330e+91.07751.5532

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2004-11-22T00:00:00ANONYMOUSv4_computers340000340000---0.400--1.064%
2021-12-24T01:33:13GdSManual testing1647790494337091241133.8495.00038.3610.005.051%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2001-09-10T00:00:00Net_Forcev4_computers21256--0.000--
2003-08-08T00:00:00ANONYMOUSv4_computers21260--0.006--
2003-10-31T00:00:00Will Edgingtonv4_computers21267--1.257--
2016-06-29T13:51:45VictordeHollanderManual testing267268--1.264--
2018-01-12T15:54:13VictordeHollanderManual testing268269--2.528--
2018-09-05T22:00:01ramgeisManual testing269270--5.057--
2021-08-05T15:14:21SRBaseManual testing270271--10.11--
2021-09-06T17:31:23TheJudgerManual testing271272--20.23--
2021-09-06T17:31:23TheJudgerManual testing272273--40.45--
2021-09-16T20:22:49TheJudgerManual testing273274--80.91--


ECM factoring results:
No ECM results for M23644867


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2004-12-13T00:00:00ANONYMOUSv4_computers164E0DD44B9D902C19.18
2010-12-06T17:17:00garochanakya164E0DD44B9D902C19.18


PRP results:
No PRP results for M23644867


P-1 factor-bounds graph:
B1 = 1647790, B2 = 49433709 (P-1 stage 2)
B1 = 1647790 (P-1 stage 1)
B1 = 340000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2021-12-24T01:33:13+00:00