1 712 981 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
9140200839361380703	19	63.0	2010-10-16 22:17:03
91346334687399164740657	23	76.3	2020-04-06 09:20:30

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)		Ed Knapton	BA2406DC100A2EBE	0
Verified (Factored)	1998-11-28	EDNY	BA2406DC100A2EBE	1578490

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-09-30	alpertron	2728FED6D8EE48F5	1	0	1	3
Verified (Factored)	2017-10-18	Oliver Kruse	2728FED6D8EE48F5	1	132224	1	3
Verified	2020-04-07	mnd9	F2E82B702AAD6F66	2	744735	5	3
Verified	2020-04-08	Sébastien BROUCKE	F2E82B702AAD6F66	2	517359	5	3

History

Date	User	Type	Result
2022-03-09	LordJulius	NF	no factor from 2^1 to 2^60
2022-03-08	LordJulius	NF	no factor from 2^58 to 2^60
2020-04-08	Sébastien BROUCKE	C-PRP	M1712981/9140200839361380703/91346334687399164740657 : F2E82B702AAD6F66 PRP: Verified PRP without proof (not generated)
2020-04-07	mnd9	C-PRP	M1712981/9140200839361380703/91346334687399164740657 : F2E82B702AAD6F66 PRP: Verified PRP without proof (not generated)
2020-04-06	TJAOI	F-ECM	Factor: 91346334687399164740657 / (ECM curve 10, B1=50000, B2=5000000)
2017-10-18	Oliver Kruse	C-PRP	M1712981/9140200839361380703 : 2728FED6D8EE48F5 PRP: Verified PRP without proof (not generated)
2017-09-30	alpertron	C-PRP	M1712981/9140200839361380703 : 2728FED6D8EE48F5 PRP: Verified PRP without proof (not generated)
2016-03-16	alpertron	NF-PM1	B1=500000, B2=15000000, E=12
2010-10-16	GrunwalderGIMP	F-ECM	Factor: 9140200839361380703
2010-04-23	Architects Cubed	NF	no factor from 2^60 to 2^61