1 214 711 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
4065301059141367051254886879	28	91.7	2016-05-02 00:32:24

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	104 / 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 Slowinski	54E	0
Verified (Factored)		John Hocking	41774B6D78DEA54E	0
Verified (Factored)	2002-08-10	Mark Outhier	41774B6D78DEA54E	3633

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-29	Oliver Kruse	AAC52B85FC1B4AE4	1	0	1	3
Verified	2017-10-18	Oliver Kruse	AAC52B85FC1B4AE4	1	1104007	1	3
Verified	2018-01-03	ATH	AAC52B85FC1B4AE4	1	72574	1	3

History

Date	User	Type	Result
2018-01-03	ATH	C-PRP	M1214711/4065301059141367051254886879 : AAC52B85FC1B4AE4 PRP: Verified PRP without proof (not generated)
2017-10-18	Oliver Kruse	C-PRP	M1214711/4065301059141367051254886879 : AAC52B85FC1B4AE4 PRP: Verified PRP without proof (not generated)
2017-09-29	Oliver Kruse	C-PRP	M1214711/4065301059141367051254886879 : AAC52B85FC1B4AE4 PRP: Verified PRP without proof (not generated)
2016-05-02	bam	F-ECM	Factor: 4065301059141367051254886879 / (ECM curve 3, B1=50000, B2=5000000)
2016-02-23	Mark Rose	NF	no factor from 2^58 to 2^60
2015-09-16	ramgeis	NF	no factor from 2^65 to 2^66
2015-04-06	monst	NF	no factor from 2^64 to 2^65
2015-03-28	omylist	NF	no factor from 2^63 to 2^64
2013-11-14	David Campeau	NF-PM1	B1=1205000, B2=34945000, E=12
2012-10-11	dbaugh	NF	no factor from 2^62 to 2^63
2011-05-09	Xyzzy	NF	no factor from 2^61 to 2^62
2009-02-15	Sturle Sunde	NF	no factor from 2^60 to 2^61