1 254 791 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
9200751703553926313233	22	73.0	2014-02-18 06:13:26

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)		Robert Clark	647FB50C880282F9	0
Verified (Factored)		Cornelius Caesar	647FB50C880282F9	0
Verified (Factored)		Brian J. Beesley	647FB50C880282F9	324235

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-29	Oliver Kruse	C0C20E81790C13F8	1	0	1	3
Verified	2017-10-20	kkmrkkblmbrbk	C0C20E81790C13F8	1	448893	1	3

History

Date	User	Type	Result
2022-03-07	LordJulius	NF	no factor from 2^58 to 2^60
2017-10-20	kkmrkkblmbrbk	C-PRP	M1254791/9200751703553926313233 : C0C20E81790C13F8 PRP: Verified PRP without proof (not generated)
2017-09-29	Oliver Kruse	C-PRP	M1254791/9200751703553926313233 : C0C20E81790C13F8 PRP: Verified PRP without proof (not generated)
2016-03-17	alpertron	NF-PM1	B1=300000, B2=10000000, E=12
2014-02-18	jim f in mn	F-ECM	Factor: 9200751703553926313233
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
2009-02-16	Sturle Sunde	NF	no factor from 2^60 to 2^61