2 233 499 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
121824052342461799390727	24	76.7	2015-11-26 09:47:45

ECM

Digits	B1	Curves
25	50000	85 / 280

Estimated T-Level: 21.5 ⓘ

TF below 2^66 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		nphan	D1FA1797903F426D	0
Verified (Factored)	1999-02-21	EDNY	D1FA1797903F426D	1327517

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-30	alpertron	B30451829B6AA16C	1	0	1	3
Verified	2017-10-28	Oliver Kruse	B30451829B6AA16C	1	1127845	1	3

P-1 factors

Date	Factor	B1	B2
2015-11-26	121824052342461799390727	1300000	11000000

History

Date	User	Type	Result
2017-10-28	Oliver Kruse	C-PRP	M2233499/121824052342461799390727 : B30451829B6AA16C PRP: Verified PRP without proof (not generated)
2017-09-30	alpertron	C-PRP	M2233499/121824052342461799390727 : B30451829B6AA16C PRP: Verified PRP without proof (not generated)
2016-04-15	alpertron	NF-PM1	B1=500000, B2=15000000, E=12
2015-11-26	Alexander Dubrovin	F-PM1	Factor: 121824052342461799390727 / (P-1, B1=1300000, B2=11000000, E=12)
2015-10-25	ramgeis	NF	no factor from 2^65 to 2^66
2015-03-10	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-03-10	VictordeHollander	NF	no factor from 2^63 to 2^64
2014-09-30	Joss	NF-PM1	B1=142474
2014-05-26	Joss	NF-PM1	B1=113737
2013-01-23	dbaugh	NF	no factor from 2^62 to 2^63
2012-04-20	Sebastian Hornbostel	NF	no factor from 2^61 to 2^62
2011-01-13	Oscar Östlin	NF-PM1	B1=85000, B2=1615000, E=6
2010-10-27	Oscar Östlin	NF-PM1	B1=75011
2009-01-11	Sturle Sunde	NF	no factor from 2^60 to 2^61