893 999 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
449128966027002409461680115352902943	36	118.4	2015-11-02 11:59:14

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	99 / 640

Estimated T-Level: 25.8 ⓘ

TF below 2^81 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		David Slowinski	3CA1	0
Verified (Factored)		Thiemo Sammern	E28941ECF328FCA1	0
Verified (Factored)	2002-01-28	Marc Getty / Phil Fizur	E28941ECF328FCA1	467093
Verified (Factored)	2015-04-11	MadPoo	E28941ECF328FCA1	279792

PRP Cofactor

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-28	Oliver Kruse	A4612258E3BE2E66	1	0	1	3
Verified	2017-10-14	Oliver Kruse	A4612258E3BE2E66	1	431209	1	3
Verified	2017-12-20	ATH	A4612258E3BE2E66	1	227819	1	3
Unverified (Reliable)	2020-04-22	Oliver Kruse	566774D015AE40__	1	589509	5	3

P-1 factors

Date	Factor	B1	B2
2015-11-02	449128966027002409461680115352902943	8939990	268199700

History

Date	User	Type	Result
2024-04-12	Anton Tsvetkov	NF-PM1	B1=8000000, B2=10053904770
2022-03-07	LordJulius	NF	no factor from 2^58 to 2^59
2020-04-22	Oliver Kruse	C-PRP	M893999/449128966027002409461680115352902943 : 566774D015AE40__ PRP: Unverified (Reliable) PRP without proof (small exponent)
2017-12-20	ATH	C-PRP	M893999/449128966027002409461680115352902943 : A4612258E3BE2E66 PRP: Unverified (Reliable) PRP without proof (small exponent)
2017-10-14	Oliver Kruse	C-PRP	M893999/449128966027002409461680115352902943 : A4612258E3BE2E66 PRP: Unverified (Reliable) PRP without proof (small exponent)
2017-09-28	Oliver Kruse	C-PRP	M893999/449128966027002409461680115352902943 : A4612258E3BE2E66 PRP: Unverified (Reliable) PRP without proof (not generated)
2015-11-02	Sid & Andy	F-PM1	Factor: 449128966027002409461680115352902943 / (P-1, B1=8939990, B2=268199700, E=12)
2015-10-31	Joss	NF-PM1	B1=8565131
2015-10-23	Joss	NF-PM1	B1=8146888
2015-10-16	Joss	NF-PM1	B1=7728645
2015-10-12	Joss	NF-PM1	B1=7310402
2015-10-10	Gordon Spence	NF	no factor from 2^63 to 2^64
2015-10-10	Gordon Spence	NF	no factor from 2^62 to 2^63
2015-10-10	Joss	NF-PM1	B1=6892159
2015-10-07	Joss	NF-PM1	B1=6473916
2015-10-02	Joss	NF-PM1	B1=5846552
2015-09-27	Joss	NF-PM1	B1=5315048
2015-09-22	Joss	NF-PM1	B1=4831862
2015-09-20	Joss	NF-PM1	B1=4392602
2015-09-17	Joss	NF-PM1	B1=3993275
2015-07-07	Joss	NF-PM1	B1=3630250
2015-06-25	Joss	NF-PM1	B1=3300228
2015-06-08	Joss	NF-PM1	B1=3000208
2015-05-22	Joss	NF-PM1	B1=2727462
2015-05-01	Joss	NF-PM1	B1=2479511
2015-04-11	MadPoo	C-LL	E28941ECF328FCA1
2015-04-08	Joss	NF-PM1	B1=2049183
2014-06-04	lycorn	NF	no factor from 2^61 to 2^62
2012-11-05	Joss	NF-PM1	B1=1862894
2011-10-08	Joss	NF-PM1	B1=768345
2011-09-11	Joss	NF-PM1	B1=384172
2011-07-12	Joss	NF-PM1	B1=230503
2011-06-08	Joss	NF-PM1	B1=200000
2010-05-23	Architects Cubed	NF	no factor from 2^60 to 2^61

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