is 2 35821609 - 1
has 10783379 decimal digits
takes 44.777 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-LECCE249D7AB17988double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual27226.697163.8889%1200000732000009.28506.5083%35.982166.2391%2.3502%
PrimeNet2670.829561.1940%16000060000000.86675.3528%1.696263.2712%2.0772%
GPU7227113.346163.3803%26000080000001.23564.0175%14.581764.8515%1.4712%
Difference+1+13.3510+0.5086%+940000+65200000+8.0494+2.4908%+21.4005+1.3876%+1.3876%

Known prime factors (1 factor, 114.9 bits, 0.00032063% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
358216093753351268696107335287205777017452135114.854523894846361606388937918140
22 × 3 × 5 × 23 × 117101 × 173777 × 971063 × 19211653
2021-06-30971063192116534.282e+93.56133.5820

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2007-03-20T00:00:00ANONYMOUSv4_computers485000485000---0.879--1.714%
2021-06-30T05:36:17firejugglerMaison12000007320000035114.8549.28589.5518.576.508%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2004-08-20T00:00:00ANONYMOUSv4_computers21260--0.004--
2006-04-28T00:00:00TMarshallv4_computers21269--3.333--
2014-09-19T17:26:00LaurVManual testing269270--3.338--
2014-10-03T00:45:00monstManual testing270271--6.676--
2021-07-04T18:58:56firejugglerManual testing271272--13.35--


ECM factoring results:
No ECM results for M35821609


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2007-08-14T00:00:002knarfv4_computersECCE249D7AB1798844.78
2007-12-03T00:00:002knarfv4_computersECCE249D7AB1798844.78
2014-10-28T10:58:00vwflat4DC1ECCE249D7AB1798844.78


PRP results:
No PRP results for M35821609


P-1 factor-bounds graph:
B1 = 1200000, B2 = 73200000 (P-1 stage 2)
B1 = 1200000 (P-1 stage 1)
B1 = 485000 (P-1 stage 1)
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108
TF factor-bounds graph:
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2120
Last modified: 2021-07-04T18:58:56+00:00