267 601 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
597035595062987449	18	59.1	2009-01-22 23:56:49
5830195636655439372565947073	28	92.2	2020-09-25 11:23:09

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	407 / 640

Estimated T-Level: 28.2 ⓘ

TF below 2^89 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		David Slowinski	C16	0
Verified (Factored)		Unknown	0C16	0
Verified (Factored)		Brian J. Beesley	2561AF6798E70C16	0
Verified (Factored)		Eivind Triel	2561AF6798E70C16	47498
Verified (Factored)	2001-10-27	Brian J. Beesley	2561AF6798E70C16	146055

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-09-22	Oliver Kruse	E5CCB4CEE2E53252	1	0	1	3
Verified (Factored)	2017-10-13	kkmrkkblmbrbk	E5CCB4CEE2E53252	1	45575	1	3
Verified (Factored)	2020-04-17	Oliver Kruse	B7D6AD61F080D463	1	230669	5	3
Verified	2020-09-25	M Miller	B7D6AD61F080D463	2	230353	5	3
Verified	2020-09-25	atrench	B7D6AD61F080D463	2	223564	5	3

History

Date	User	Type	Result
2022-03-07	LordJulius	NF	no factor from 2^57 to 2^58
2022-03-07	LordJulius	NF	no factor from 2^54 to 2^55
2020-09-25	Ben Delo	CERT	PRP Certification Proof certified good
2020-09-25	atrench	C-PRP	M267601/597035595062987449/5830195636655439372565947073 : B7D6AD61F080D463 PRP proof power = 5 PRP: Verified Proof certified good
2020-09-25	Ben Delo	CERT	PRP Certification Proof certified good
2020-09-25	M Miller	C-PRP	M267601/597035595062987449/5830195636655439372565947073 : B7D6AD61F080D463 PRP proof power = 5 PRP: Verified Proof certified good
2020-09-25	_p95holder_	F-ECM	Factor: 5830195636655439372565947073 / (ECM curve 7, B1=250000, B2=25000000)
2020-04-17	Oliver Kruse	C-PRP	M267601/597035595062987449 : B7D6AD61F080D463 PRP: Verified (Factored) PRP without proof (small exponent)
2017-10-13	kkmrkkblmbrbk	C-PRP	M267601/597035595062987449 : E5CCB4CEE2E53252 PRP: Verified (Factored) PRP without proof (small exponent)
2017-09-22	Oliver Kruse	C-PRP	M267601/597035595062987449 : E5CCB4CEE2E53252 PRP: Verified (Factored) PRP without proof (not generated)
2017-09-22	Oliver Kruse	C-PRP	M267601/597035595062987449 : E5CCB4CEE2E53252 PRP without proof (not generated)
2009-01-22	Sturle Sunde	F	Factor: 597035595062987449
2008-12-31	Sturle Sunde	NF	no factor from 2^58 to 2^59