7 912 699 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
234743791790371087999	21	67.7	2018-07-24 09:48:36

ECM

Digits	B1	Curves
25	50000	3 / 280

Estimated T-Level: 20.1 ⓘ

TF below 2^62 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)	1999-09-22	Jeff Malick	952D51EDD3077147	7452795
Verified (Factored)	2002-06-02	Ars Technica Team Prime Rib	952D51EDD3077147	3461090

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2018-07-27	_p95holder_	FDEF528DAA46311B	1	1325513	5	3
Verified	2019-11-17	Numberwang	FDEF528DAA46311B	1	4455997	5	3

History

Date	User	Type	Result
2019-11-17	Numberwang	C-PRP	M7912699/234743791790371087999 : FDEF528DAA46311B PRP: Verified PRP without proof (not generated)
2018-07-27	_p95holder_	C-PRP	M7912699/234743791790371087999 : FDEF528DAA46311B PRP: Verified PRP without proof (not generated)
2018-07-24	ramgeis	F	Factor: 234743791790371087999 / TF: 67-68*
2016-08-16	Gordon Spence	NF	no factor from 2^66 to 2^67
2015-06-03	VictordeHollander	NF	no factor from 2^65 to 2^66
2013-12-19	David Campeau	NF	no factor from 2^64 to 2^65
2013-10-01	Nesowa	NF	no factor from 2^63 to 2^64
2012-10-11	Nesowa	NF-PM1	B1=100000, B2=1925000, E=6