1 330 223 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
2660447	7	21.3	old
74492489	8	26.2	2008-07-15 09:58:17
279346831	9	28.1	2008-07-15 09:58:17
2628520649	10	31.3	2008-07-15 09:58:17
15788681972275943	17	53.8	2014-08-19 03:08:50
7260318506920675297	19	62.7	2016-09-19 11:20:20
5895608130618304275481	22	72.3	2018-08-31 10:13:56
629367600175232507902361	24	79.1	2018-08-31 10:13:56

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	194 / 640

Estimated T-Level: 26.5 ⓘ

TF below 2^83 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 (Factored)	2017-10-05	Oliver Kruse	1889E72A24F7CE05	6	0	1	3
Verified (Factored)	2017-10-23	kkmrkkblmbrbk	1889E72A24F7CE05	6	87060	1	3
Verified	2018-08-31	Oliver Kruse	2FB1A72DE455A337	8	1282646	5	3
Verified	2018-08-31	ATH	2FB1A72DE455A337	8	934219	5	3

History

Date	User	Type	Result
2022-03-08	LordJulius	NF	no factor from 2^61 to 2^62
2022-03-08	LordJulius	NF	no factor from 2^54 to 2^61
2022-03-07	LordJulius	NF	no factor from 2^65 to 2^66
2022-03-07	LordJulius	NF	no factor from 2^64 to 2^65
2022-03-07	LordJulius	NF	no factor from 2^63 to 2^64
2021-03-28	Seth_Tr	NF-PM1	B1=200000000, B2=36200000000
2021-03-11	Seth_Tr	NF-PM1	B1=50000000, B2=9050000000
2019-12-31	Seth_Tr	NF	no factor from 2^68 to 2^69
2019-12-15	Seth_Tr	NF	no factor from 2^67 to 2^68
2019-12-10	Seth_Tr	NF	no factor from 2^66 to 2^67
2018-08-31	ATH	C-PRP	M1330223/2660447/2628520649/279346831/74492489/15788681972275943/7260318506920675297/629367600175232507902361/5895608130618304275481 : 2FB1A72DE455A337 PRP: Verified PRP without proof (not generated)
2018-08-31	Oliver Kruse	C-PRP	M1330223/2660447/2628520649/279346831/74492489/15788681972275943/7260318506920675297/629367600175232507902361/5895608130618304275481 : 2FB1A72DE455A337 PRP: Verified PRP without proof (not generated)
2018-08-31	TJAOI	F-ECM	Factor: 5895608130618304275481 / (ECM curve 161, B1=50000, B2=5000000)
2018-08-31	TJAOI	F-ECM	Factor: 629367600175232507902361 / (ECM curve 23, B1=50000, B2=5000000)
2017-10-23	kkmrkkblmbrbk	C-PRP	M1330223/2660447/2628520649/279346831/74492489/15788681972275943/7260318506920675297 : 1889E72A24F7CE05 PRP: Verified PRP without proof (not generated)
2017-10-05	Oliver Kruse	C-PRP	M1330223/2660447/2628520649/279346831/74492489/15788681972275943/7260318506920675297 : 1889E72A24F7CE05 PRP: Verified PRP without proof (not generated)
2017-09-30	Oliver Kruse	C-PRP	M1330223/2660447/2628520649/279346831/74492489/15788681972275943/7260318506920675297 : 1889E72A24F7CE05 PRP without proof (not generated)
2016-09-19	TJAOI	F	Factor: 7260318506920675297 / TF: 62-63
2016-03-17	alpertron	NF-PM1	B1=500000, B2=15000000, E=12
2014-08-19	pdazzl	F	Factor: 15788681972275943 / TF: 1-54
2008-07-15	J Feitsma	F	Factor: 74492489
2008-07-15	J Feitsma	F	Factor: 279346831
2008-07-15	J Feitsma	F	Factor: 2628520649

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