is 2 1841701 - 1
has 554408 decimal digits
takes 0.100 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
-unknown- primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual26716.134068.6567%10000001883290500.88158.2204%17.015571.2332%2.5765%
PrimeNet2570.010463.1579%80001500000.00122.8826%0.011764.2199%1.0620%
GPU722610.166865.5738%90001400000.00131.5967%0.168166.1234%0.5497%
Difference+6+15.9672+3.0829%+991000+188189050+0.8802+6.6237%+16.8474+5.1098%+5.1098%

Known prime factors (2 factors, 114.4 bits, 0.00620912% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
184170135094680741591341.674952779
3 × 317593
-33175931.955e-70.00140.0025
184170175611256125582290095612272.6792052756015378780
22 × 3 × 5 × 193 × 283 × 626386427
2020-06-24283626386427633.932.68465.0140

1 Composite Factors:
exponentprime factorscomposite factordigitsbits*
18417012653552894197901714743172866803419935114.353
P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2022-04-03T12:49:02Jocelyn LaroucheManual testing1000000188329050-
skipped known factor: 3509468074159
--0.882--8.220%


Trial Factoring results:
No TF results for M1841701


ECM factoring results:

Old Calculation Method

Total ECM effort:18.195 GHz-days
Estimated T-Level:24.482
DigitsB1CurvesCompleteFacMiss
2011000251 / 1002.5108.025%
2550000251 / 2800.89640.737%

New Calculation Method

Total ECM effort:18.195 GHz-days
Estimated T-Level:24.482
DigitsB1CompleteFacMiss
20110008.3100.025%
25500000.75247.147%
302500000.04695.466%
3510000000.00299.787%


ECM Summary

B1B2factorcurvesGHz-days
50000500000060.415
50000500000014910.30
500006600000967.481


Lucas-Lehmer results:
No L-L results for M1841701


PRP results:
dateuseridcompidcofactorsres64PRP
2017-10-04T04:03:54Oliver KruseGTX-2
3509468074159
4EC0F58BEB765F__no
2017-11-11T01:38:15kkmrkkblmbrbkc4.xlarge
3509468074159
4EC0F58BEB765F__no
2020-06-25T05:03:10atrenchDesktop
3509468074159
7561125612558229009561
78DDFC48AD65BFDBno
2020-06-27T05:12:45oodairacom1
3509468074159
7561125612558229009561
78DDFC48AD65BFDBno


P-1 factor-bounds graph:
B1 = 1000000, B2 = 188329050 (P-1 stage 2)
B1 = 1000000 (P-1 stage 1)
100
101
102
103
104
105
106
100
101
102
103
104
105
106
107
108
109
TF factor-bounds graph:
267
240
250
260
270
280
290
2100
Last modified: 2022-04-03T12:49:02+00:00