is 2 402637069 - 1
has 121205836 decimal digits
takes 7,668.745 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
Actual2849,730.518965.4762 %250000007500000001,781.30495.8967 %11,511.823867.5120 %
Target2811,216.314564.1975 %2400000500000000814.99864.3972 %2,031.313165.7718 %
Difference+3+8,514.2044+1.2787 %+22600000+250000000+966.3062+1.4995%+9,480.5107+1.7401 %

Known prime factors (1 factor, 105.0 bits, 0.00002607% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
4026370693968859877626089893877145978519132104.96849285823179212665760255
3 × 5 × 101 × 223 × 4129 × 620261 × 56961991
2020-11-2262026156961991318,849,658101.90160.08

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2020-11-22Roland ClarksonManual testing25000000750000000232104.9681,7937.338%


Trial Factoring results:
57585960616263646566676869707172737475767778798081828384
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2014-01-08The MawnManual testing2652680.130
2017-08-18sasakiManual testing2682690.148
2018-11-24sasakiManual testing2692700.297
2020-05-25SRBaseManual testing2702710.594
2020-08-05SRBaseManual testing2712721.188
2020-11-21Roland ClarksonManual testing2722732.376
2020-11-21Roland ClarksonManual testing2732744.751
2020-11-21Roland ClarksonManual testing2742759.50
2020-11-21Roland ClarksonManual testing27527619.00
2020-11-21Roland ClarksonManual testing27627738.01
2020-11-21Roland ClarksonManual testing27727876.02
2020-11-21Roland ClarksonManual testing278279152.0
2020-11-21Roland ClarksonManual testing279280304.1
2020-11-21Roland ClarksonManual testing280281608.2
2020-11-21Roland ClarksonManual testing2812821,216
2020-11-21Roland ClarksonManual testing2822832,433
2020-11-21Roland ClarksonManual testing2832844,865


ECM factoring results:
No ECM results for M402637069


Lucas-Lehmer results:
No L-L results for M402637069


PRP results:
No PRP results for M402637069


CERT results:
No CERT results for M402637069


P-1 factor-bounds graph:
B1 = 25000000, B2 = 750000000 (P-1 stage 2)
B1 = 25000000 (P-1 stage 1)
104
105
106
107
108
104
105
106
107
108
109
TF factor-bounds graph:
284
283
282
281
280
279
278
277
276
275
274
273
272
271
270
269
268
this exponent TF target: 81
TF double-checked to: 67
250
260
270
280
290
2100
2110
JSON version of this page
Last modified: 2024-03-13T02:15:48+00:00