4 325 687 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Composite, with 1 known prime factor. Cofactor is composite.

Factored

Factor	Digits	Bits	Date
2570930036141009803290945401	28	91.1	2022-11-07 19:37:05

ECM

Digits	B1	Curves
25	50000	12 / 280

Estimated T-Level: 20.2 ⓘ

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

Status	Date	User	Residue	Shift
Verified (Factored)	1998-04-27	Peter Kraatz	66CD4B903A98EEAC	0
Verified (Factored)	1999-11-17	Alessandro Poppi	66CD4B903A98EEAC	319397

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2022-11-14	kutens	B49ACBD5BFB39B4B	1	2511515	5	3

P-1 factors

Date	Factor	B1	B2
2022-11-07	2570930036141009803290945401	6200000	35496041490

History

Date	User	Type	Result
2022-11-14	Jon Pace	CERT	PRP Certification Proof certified good
2022-11-14	kutens	C-PRP	M4325687/2570930036141009803290945401 : B49ACBD5BFB39B4B PRP proof power = 7 PRP: Verified Proof certified good
2022-11-07	DRobinsonPE	F-PM1	Factor: 2570930036141009803290945401 / (P-1, B1=6200000, B2=35496041490)
2021-06-13	Dylan Delgado	NF-PM1	B1=440000, B2=13200000, e=12
2021-02-10	-Anonymous-	NF	no factor from 2^72 to 2^73
2021-01-28	-Anonymous-	NF	no factor from 2^71 to 2^72
2021-01-28	-Anonymous-	NF	no factor from 2^70 to 2^71
2021-01-25	-Anonymous-	NF	no factor from 2^69 to 2^70
2021-01-25	-Anonymous-	NF	no factor from 2^68 to 2^69
2018-10-24	chuenkit	NF	no factor from 2^67 to 2^68
2018-04-30	chuenkit	NF	no factor from 2^66 to 2^67
2016-02-23	Mark Rose	NF	no factor from 2^62 to 2^63
2016-01-18	Squeeky_Squirrel	NF-PM1	B1=150000, B2=3637500, E=6
2015-06-15	snme2pm1	NF	no factor from 2^65 to 2^66
2014-06-01	lycorn	NF	no factor from 2^64 to 2^65
2014-05-31	Jayder	NF	no factor from 2^63 to 2^64
2012-01-08	GrunwalderGIMP	NF	no factor from 2^1 to 2^63
2011-12-15	Squeeky_Squirrel	NF-PM1	B1=80000, B2=1440000, E=6
2010-12-05	markr	NF	no factor from 2^61 to 2^62
2009-07-28	Carsten Kossendey	NF-PM1	B1=25000, B2=343750

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