2 727 793 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
1329651252680703272449	22	70.2	2021-07-23 21:06:05

ECM

Digits	B1	Curves
25	50000	109 / 280

Estimated T-Level: 21.9 ⓘ

TF below 2^68 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		David Linton	5E1CBC597907D8B0	0
Verified (Factored)	1999-05-09	Ian Griffin	5E1CBC597907D8B0	2193691
Verified (Factored)	2018-08-08	kkmrkkblmbrbk	5E1CBC597907D8B0	1858878

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2021-07-25	kutens	2ADB2E97094EBAC9	1	1147493	5	3

History

Date	User	Type	Result
2021-07-25	Ben Delo	CERT	PRP Certification Proof certified good
2021-07-25	kutens	C-PRP	M2727793/1329651252680703272449 : 2ADB2E97094EBAC9 PRP proof power = 7 PRP: Verified Proof certified good
2021-07-23	kutens	F-ECM	Factor: 1329651252680703272449 / (ECM curve 6, B1=50000, B2=6450000, Sigma=6167548004400060)
2021-02-16	Numberwang	NF-PM1	B1=142000, B2=4490000, E=6
2019-02-13	chuenkit	NF	no factor from 2^67 to 2^68
2018-08-08	kkmrkkblmbrbk	C-LL	5E1CBC597907D8B0
2017-10-05	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-10-15	mikr	NF-PM1	B1=2700000, B2=84000000, E=12
2016-02-23	Mark Rose	NF	no factor from 2^1 to 2^60
2016-02-01	ramgeis	NF	no factor from 2^65 to 2^66
2015-04-13	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-04-13	VictordeHollander	NF	no factor from 2^63 to 2^64
2013-01-14	dbaugh	NF	no factor from 2^62 to 2^63
2012-04-22	Grant McCracken	NF	no factor from 2^61 to 2^62
2011-04-25	James Heinrich	NF-PM1	B1=185000, B2=4578750, E=6
2011-01-19	Joss	NF-PM1	B1=50000
2010-12-28	Joss	NF-PM1	B1=30000
2010-12-19	Joss	NF-PM1	B1=20000
2009-01-30	Sturle Sunde	NF	no factor from 2^60 to 2^61