1 909 777 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
886971938518103910251497	24	79.6	2016-08-21 08:37:27

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	106 / 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)		James Tunnicliffe	806510DC11F112F6	0
Verified (Factored)	1998-12-27	David Phillips	806510DC11F112F6	349451
Verified (Factored)	2015-07-14	MadPoo	806510DC11F112F6	1882419

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-10-04	Oliver Kruse	29A616F3340481DC	1	0	1	3
Verified	2017-11-09	kkmrkkblmbrbk	29A616F3340481DC	1	75875	1	3

History

Date	User	Type	Result
2017-11-09	kkmrkkblmbrbk	C-PRP	M1909777/886971938518103910251497 : 29A616F3340481DC PRP: Verified PRP without proof (not generated)
2017-10-04	Oliver Kruse	C-PRP	M1909777/886971938518103910251497 : 29A616F3340481DC PRP: Verified PRP without proof (not generated)
2016-08-21	bam	F-ECM	Factor: 886971938518103910251497 / (ECM curve 1, B1=50000, B2=5000000)
2015-09-01	ramgeis	NF	no factor from 2^65 to 2^66
2015-07-14	MadPoo	C-LL	806510DC11F112F6
2015-05-19	monst	NF	no factor from 2^64 to 2^65
2015-05-18	omylist	NF	no factor from 2^63 to 2^64
2011-06-15	kurly	NF-PM1	B1=1000000, B2=30000000, E=12
2011-03-07	GrunwalderGIMP	NF	no factor from 2^62 to 2^63
2011-03-07	GrunwalderGIMP	NF	no factor from 2^61 to 2^62
2009-05-27	Architects Cubed	NF	no factor from 2^60 to 2^61