1 770 551 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
302731052067683423	18	58.1	old
1229067852017677956503	22	70.1	2020-08-11 07:55:22

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	107 / 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)		Dirk Swanson	125A62B0DE86B8C8	0
Verified (Factored)	1999-06-06	Domingo Tabangcura Jr	125A62B0DE86B8C8	380583

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-10-03	Oliver Kruse	4C6EF26EFE1D92C4	1	0	1	3
Verified (Factored)	2017-11-04	kkmrkkblmbrbk	4C6EF26EFE1D92C4	1	502890	1	3
Verified	2020-08-11	M Miller	35C08205140FF1B2	2	992289	5	3

History

Date	User	Type	Result
2020-08-11	Architects Cubed	CERT	PRP Certification Proof certified good
2020-08-11	M Miller	C-PRP	M1770551/302731052067683423/1229067852017677956503 : 35C08205140FF1B2 PRP proof power = 7 PRP: Verified Proof certified good
2020-08-11	_p95holder_	F-ECM	Factor: 1229067852017677956503 / (ECM curve 3, B1=50000, B2=5000000)
2017-11-04	kkmrkkblmbrbk	C-PRP	M1770551/302731052067683423 : 4C6EF26EFE1D92C4 PRP: Verified (Factored) PRP without proof (not generated)
2017-10-03	Oliver Kruse	C-PRP	M1770551/302731052067683423 : 4C6EF26EFE1D92C4 PRP: Verified (Factored) PRP without proof (not generated)
2016-03-16	alpertron	NF-PM1	B1=500000, B2=15000000, E=12