1 461 913 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
85512270767277455630857	23	76.2	2009-01-24 10:48:33
4513607949771035047332889	25	81.9	2019-04-12 15:20:52

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)		phil kenny	528D07C9277DDCD0	0
Verified (Factored)	1998-12-27	Sean Conway	528D07C9277DDCD0	1077099

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-10-01	Oliver Kruse	E4C936407044D36E	1	0	1	3
Verified (Factored)	2017-10-27	kkmrkkblmbrbk	E4C936407044D36E	1	578333	1	3
Verified	2019-04-12	ATH	E8AFE4E4E537C195	2	526291	5	3
Verified	2019-04-13	kkmrkkblmbrbk	E8AFE4E4E537C195	2	1341266	5	3

History

Date	User	Type	Result
2019-04-13	kkmrkkblmbrbk	C-PRP	M1461913/85512270767277455630857/4513607949771035047332889 : E8AFE4E4E537C195 PRP: Verified PRP without proof (not generated)
2019-04-12	ATH	C-PRP	M1461913/85512270767277455630857/4513607949771035047332889 : E8AFE4E4E537C195 PRP: Verified PRP without proof (not generated)
2019-04-12	TJAOI	F-ECM	Factor: 4513607949771035047332889 / (ECM curve 66, B1=50000, B2=5000000)
2017-10-27	kkmrkkblmbrbk	C-PRP	M1461913/85512270767277455630857 : E4C936407044D36E PRP: Verified PRP without proof (not generated)
2017-10-01	Oliver Kruse	C-PRP	M1461913/85512270767277455630857 : E4C936407044D36E PRP: Verified PRP without proof (not generated)
2016-03-17	alpertron	NF-PM1	B1=500000, B2=15000000, E=12
2009-01-24	axn	F-ECM	Factor: 85512270767277455630857