3 250 441 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Composite, with 2 known prime factors. Cofactor is composite.

Factored

Factor	Digits	Bits	Date
5475260790536398030507873	25	82.2	2020-01-18 10:42:11
766612452892782428212853749703	30	99.3	2020-01-18 10:42:11

ECM

Digits	B1	Curves
25	50000	15 / 280

Estimated T-Level: 20.3 ⓘ

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

Status	Date	User	Residue	Shift
Verified (Factored)		Sara Smith	F439C6BB336E572E	0
Verified (Factored)	1999-06-06	Larry P. Bolster	F439C6BB336E572E	1874645

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2020-01-23	Luigi Morelli	B0D3773E4C8DF3CA	2	289616	5	3
Verified	2020-01-24	marssystems	B0D3773E4C8DF3CA	2	244293	5	3

P-1 factors

Date	Factor	B1	B2
2020-01-18	4197403104860783113089325971753317307552548957512911719	3000000	90000000

History

Date	User	Type	Result
2022-08-22	Joss	NF-PM1	B1=3250441, B2=354763500
2022-01-06	Joss	NF-PM1	B1=1562610, B2=116447100
2021-01-15	Joss	NF-PM1	B1=325044, B2=3250441, E=6
2021-01-14	Joss	NF-PM1	B1=325044
2020-01-24	marssystems	C-PRP	M3250441/766612452892782428212853749703/5475260790536398030507873 : B0D3773E4C8DF3CA PRP: Verified PRP without proof (not generated)
2020-01-23	Luigi Morelli	C-PRP	M3250441/766612452892782428212853749703/5475260790536398030507873 : B0D3773E4C8DF3CA PRP: Verified PRP without proof (not generated)
2020-01-18	BigBrother	F-PM1	Factor: 4197403104860783113089325971753317307552548957512911719 / (P-1, B1=3000000, B2=90000000, E=12)
2019-01-14	TJAOI	NF	no factor from 2^67 to 2^68
2017-04-02	Joss	NF-PM1	B1=320000, B2=3200000, E=6
2017-03-27	Gordon Spence	NF	no factor from 2^66 to 2^67
2017-02-04	Joss	NF-PM1	B1=192000
2015-10-07	Squeeky_Squirrel	NF-PM1	B1=160000, B2=4120000, E=6
2015-06-28	Tha	NF	no factor from 2^65 to 2^66
2015-02-18	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-02-18	VictordeHollander	NF	no factor from 2^63 to 2^64
2014-09-29	Joss	NF-PM1	B1=99492
2014-06-11	Joss	NF-PM1	B1=79746
2012-12-30	dbaugh	NF	no factor from 2^62 to 2^63
2011-09-24	markr	NF	no factor to 2^62
2011-09-11	USAFSS	NF-PM1	B1=60000, B2=1050000, E=6
2009-07-04	Carsten Kossendey	NF-PM1	B1=15000, B2=191250
2009-04-05	S485122	NF	no factor from 2^60 to 2^61

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