2 827 553 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
787454155878949450769	21	69.4	2020-09-13 13:49:35

ECM

Digits	B1	Curves
25	50000	34 / 280

Estimated T-Level: 20.6 ⓘ

TF below 2^63 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Paul Wilson	C304EF20EF8337E8	0
Verified (Factored)	1999-04-23	Goede Schueler/Christoph Steinbeck	C304EF20EF8337E8	1682573
Verified (Factored)	2018-09-09	kkmrkkblmbrbk	C304EF20EF8337E8	619658

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2020-09-13	bald2718281828	1179F6527B34D644	1	2589366	5	3
Verified	2020-09-14	oodaira	1179F6527B34D644	1	1209084	5	3

History

Date	User	Type	Result
2020-09-14	oodaira	C-PRP	M2827553/787454155878949450769 : 1179F6527B34D644 PRP: Verified PRP without proof (not generated)
2020-09-13	bald2718281828	C-PRP	M2827553/787454155878949450769 : 1179F6527B34D644 PRP: Verified PRP without proof (not generated)
2020-09-13	rextherunt	F-ECM	Factor: 787454155878949450769 / (ECM curve 4, B1=50000, B2=5000000)
2020-01-24	masser	NF-PM1	B1=5000000, B2=200000000, E=12
2019-11-10	masser	NF-PM1	B1=3000000, B2=30000000, E=12
2019-01-03	chuenkit	NF	no factor from 2^67 to 2^68
2018-09-09	kkmrkkblmbrbk	C-LL	C304EF20EF8337E8
2017-10-28	Gordon Spence	NF	no factor from 2^66 to 2^67
2017-10-07	Joss	NF-PM1	B1=597196, B2=5971960, E=6
2017-02-25	Joss	NF-PM1	B1=298598, B2=2985980, E=6
2016-12-23	Joss	NF-PM1	B1=207360
2016-09-22	Joss	NF-PM1	B1=120000, B2=3993000
2016-09-21	Joss	NF-PM1	B1=120000, B2=3630000
2016-09-18	Joss	NF-PM1	B1=120000, B2=3300000, E=6
2016-02-23	Mark Rose	NF	no factor from 2^1 to 2^60
2016-02-13	ramgeis	NF	no factor from 2^65 to 2^66
2015-04-21	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-04-21	VictordeHollander	NF	no factor from 2^63 to 2^64
2013-01-10	dbaugh	NF	no factor from 2^62 to 2^63
2012-02-15	markr	NF	no factor from 2^61 to 2^62
2009-02-13	Sturle Sunde	NF	no factor from 2^60 to 2^61

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