2 304 563 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
111832972854978225683761567	27	86.5	2016-08-07 12:06:03

ECM

Digits	B1	Curves
25	50000	176 / 280

Estimated T-Level: 23.1 ⓘ

TF below 2^72 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Gregory Grant	687C9ED38E437AA3	0
Verified (Factored)	1999-03-01	Nick Price	687C9ED38E437AA3	621214

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-10-11	Oliver Kruse	5028747D37D98A8D	1	0	1	3
Verified	2017-11-22	kkmrkkblmbrbk	5028747D37D98A8D	1	1101921	1	3

History

Date	User	Type	Result
2021-06-09	ViliamF	NF-PM1	B1=5000000, B2=505000000
2018-02-18	alpertron	NF-PM1	B1=500000, B2=15000000, E=12
2017-11-22	kkmrkkblmbrbk	C-PRP	M2304563/111832972854978225683761567 : 5028747D37D98A8D PRP: Verified PRP without proof (not generated)
2017-10-11	Oliver Kruse	C-PRP	M2304563/111832972854978225683761567 : 5028747D37D98A8D PRP: Verified PRP without proof (not generated)
2016-08-07	bam	F-ECM	Factor: 111832972854978225683761567 / (ECM curve 3, B1=50000, B2=5000000)
2016-02-23	Mark Rose	NF	no factor from 2^1 to 2^60
2015-10-21	ramgeis	NF	no factor from 2^65 to 2^66
2015-02-27	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-02-27	VictordeHollander	NF	no factor from 2^63 to 2^64
2013-01-23	dbaugh	NF	no factor from 2^62 to 2^63
2012-05-12	Sebastian Hornbostel	NF	no factor from 2^61 to 2^62
2010-02-15	Bud	NF-PM1	B1=500000, B2=10000000, E=12
2009-01-14	Sturle Sunde	NF	no factor from 2^60 to 2^61