3 152 983 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
324991687675244468587976809	27	88.1	2021-02-17 20:33:34

ECM

Digits	B1	Curves
25	50000	34 / 280

Estimated T-Level: 20.6 ⓘ

TF below 2^63 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Ken Kriesel	70B220DFDB765764	0
Verified (Factored)	1999-06-06	Brent Chartrand	70B220DFDB765764	1751788

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2021-02-19	ViliamF	3B4C9908CAB92B40	1	378317	5	3

History

Date	User	Type	Result
2022-02-12	Joss	NF-PM1	B1=1000000, B2=119912100
2021-02-19	Ben Delo	CERT	PRP Certification Proof certified good
2021-02-19	ViliamF	C-PRP	M3152983/324991687675244468587976809 : 3B4C9908CAB92B40 PRP proof power = 7 PRP: Verified Proof certified good
2021-02-17	mnd9	F-ECM	Factor: 324991687675244468587976809 / (ECM curve 5, B1=50000, B2=5000000, Sigma=7127158777378118)
2019-05-09	mikr	NF-PM1	B1=3000000, B2=100000000, E=12
2019-02-04	TJAOI	NF	no factor from 2^67 to 2^68
2017-04-22	Gordon Spence	NF	no factor from 2^66 to 2^67
2015-11-24	HBendtz	NF-PM1	B1=500000, B2=12000000, e=12
2015-06-17	Tha	NF	no factor from 2^65 to 2^66
2015-02-11	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-02-11	VictordeHollander	NF	no factor from 2^63 to 2^64
2013-09-05	Squeeky_Squirrel	NF-PM1	B1=110000, B2=2502500, E=6
2013-01-03	dbaugh	NF	no factor from 2^62 to 2^63
2011-11-03	markr	NF	no factor to 2^62
2011-09-07	Squeeky_Squirrel	NF-PM1	B1=55000, B2=948750, E=6
2009-07-03	Carsten Kossendey	NF-PM1	B1=15000, B2=183750
2009-04-10	S485122	NF	no factor from 2^60 to 2^61