1 537 801 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
97258964246602302049	20	66.4	2013-09-06 12:52:02

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	105 / 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 Linton	FFBDA0DC18026921	0
Verified (Factored)	1998-11-28	Trevor Green	FFBDA0DC18026921	1223965

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-10-01	Oliver Kruse	0B4538694A0B040D	1	0	1	3
Verified	2017-10-30	ATH	0B4538694A0B040D	1	642856	1	3

History

Date	User	Type	Result
2017-10-30	ATH	C-PRP	M1537801/97258964246602302049 : 0B4538694A0B040D PRP: Verified PRP without proof (not generated)
2017-10-01	Oliver Kruse	C-PRP	M1537801/97258964246602302049 : 0B4538694A0B040D PRP: Verified PRP without proof (not generated)
2016-03-17	alpertron	NF-PM1	B1=500000, B2=15000000, E=12
2013-09-06	Chang Chia-Tche	F-ECM	Factor: 97258964246602302049
2011-02-01	James Heinrich	NF-PM1	B1=80000, B2=1340000, E=6
2010-05-04	GrunwalderGIMP	NF	no factor from 2^1 to 2^63
2010-04-27	Architects Cubed	NF	no factor from 2^60 to 2^61