4 054 627 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
32380688619618533268477199	26	84.7	2021-06-22 22:40:58

ECM

Digits	B1	Curves
25	50000	57 / 280

Estimated T-Level: 21.0 ⓘ

TF below 2^65 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)	1998-05-08	Luke Welsh	7867021C8DE8AD40	0
Verified (Factored)	1999-10-15	Bill Dealey	7867021C8DE8AD40	4015803

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2021-06-23	tottenhoff	43DD74500F73BE2B	1	2268707	5	3

P-1 factors

Date	Factor	B1	B2
2023-09-21	32380688619618533268477199	600000	378656850

History

Date	User	Type	Result
2023-09-21	USAFSS	F-PM1	Factor: 32380688619618533268477199 / (P-1, B1=600000, B2=378656850)
2021-06-24	rduerr	CERT	PRP Certification Proof certified good
2021-06-23	tottenhoff	C-PRP	M4054627/32380688619618533268477199 : 43DD74500F73BE2B PRP proof power = 7 PRP: Verified Proof certified good
2021-06-22	ATH	F-PP1	Start=2/7, B1=2500000, B2=177500000, Factor: 32380688619618533268477199
2020-10-30	mikr	NF	no factor from 2^69 to 2^70
2020-10-30	mikr	NF	no factor from 2^68 to 2^69
2018-12-12	Ismo Laitela	NF-PM1	B1=2237739, B2=62656681, E=12
2018-11-03	Yxinity	NF	no factor from 2^67 to 2^68
2016-09-19	kkmrkkblmbrbk	NF	no factor from 2^66 to 2^67
2016-02-23	Mark Rose	NF	no factor from 2^62 to 2^63
2015-05-21	snme2pm1	NF	no factor from 2^65 to 2^66
2013-10-07	David Campeau	NF	no factor from 2^64 to 2^65
2013-08-18	Jayder	NF	no factor from 2^63 to 2^64
2013-06-09	Squeeky_Squirrel	NF-PM1	B1=120000, B2=2310000, E=6
2011-07-22	USAFSS	NF-PM1	B1=40000, B2=580000
2011-07-01	GrunwalderGIMP	NF	no factor from 2^1 to 2^63
2010-10-13	Grant McCracken	NF	no factor from 2^61 to 2^62
2009-07-17	Carsten Kossendey	NF-PM1	B1=20000, B2=300000