27 366 961 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
164201767	9	27.3	old
3065099633	10	31.5	2008-09-08 23:30:37
4542915527	10	32.1	2008-09-08 23:30:37
61083056953	11	35.8	2008-09-08 23:30:37
853192376137	12	39.6	2008-09-08 23:30:37
277390640953249	15	48.0	2008-10-01 01:54:17
226515864609528049	18	57.7	2011-07-21 18:01:04
16864412087685609017	20	63.9	2013-01-19 01:18:41
412441893852888010968071	24	78.4	2015-02-15 23:49:45

ECM

Digits	B1	Curves
25	50000	3 / 280

Estimated T-Level: 20.1 ⓘ

TF below 2^62 is very unlikely to find new factors due to ECM effort.

PRP Cofactor

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-11-01	ATH	C172E8306454AA7F	9	22270473	5	3
Verified	2020-05-18	Jaytholomew	C172E8306454AA7F	9	455575	5	3

P-1 factors

Date	Factor	B1	B2
2015-02-15	412441893852888010968071	100000	0

History

Date	User	Type	Result
2024-01-28	masser	NF-PP1	Start=2/7, B1=50000, B2=2500000
2022-01-14	Seth_Tr	NF-PM1	B1=50000000, B2=5005809270
2021-09-14	Seth_Tr	NF-PM1	B1=5000000, B2=500000000
2021-08-06	Seth_Tr	NF	no factor from 2^67 to 2^68
2021-08-06	Seth_Tr	NF	no factor from 2^66 to 2^67
2020-05-18	Jaytholomew	C-PRP	M27366961/164201767/3065099633/4542915527/61083056953/853192376137/277390640953249/226515864609528049/16864412087685609017/412441893852888010968071 : C172E8306454AA7F PRP: Verified PRP without proof (not generated)
2020-01-03	Seth_Tr	NF-PM1	B1=2000000, B2=200000000, E=12
2019-12-07	Seth_Tr	NF	no factor from 2^68 to 2^69
2019-12-04	Seth_Tr	NF	no factor from 2^69 to 2^70
2017-11-07	ATH	NF	no factor from 2^75 to 2^76
2017-11-07	ATH	NF	no factor from 2^74 to 2^75
2017-11-06	ATH	NF	no factor from 2^73 to 2^74
2017-11-06	ATH	NF	no factor from 2^72 to 2^73
2017-11-06	ATH	NF	no factor from 2^71 to 2^72
2017-11-06	ATH	NF	no factor from 2^70 to 2^71
2017-11-06	ATH	NF	no factor from 2^69 to 2^70
2017-11-06	ATH	NF	no factor from 2^68 to 2^69
2017-11-06	ATH	NF	no factor from 2^67 to 2^68
2017-11-06	ATH	NF	no factor from 2^66 to 2^67
2017-11-06	ATH	NF	no factor from 2^64 to 2^66
2017-11-01	ATH	C-PRP	M27366961/164201767/3065099633/4542915527/61083056953/853192376137/277390640953249/226515864609528049/16864412087685609017/412441893852888010968071 : C172E8306454AA7F PRP: Verified PRP without proof (not generated)
2015-02-15	pdazzl	F-PM1	Factor: 412441893852888010968071 / (P-1, B1=100000)
2013-01-19	Never Odd Or Even	F	Factor: 16864412087685609017
2011-07-21	Axon	F	Factor: 226515864609528049
2008-10-01	markr	F	Factor: 277390640953249
2008-09-08	Will Edgington	F	Factor: 853192376137
2008-09-08	Will Edgington	F	Factor: 61083056953
2008-09-08	Will Edgington	F	Factor: 4542915527
2008-09-08	Will Edgington	F	Factor: 3065099633

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