2 803 369 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Status

Details

Composite, with 2 known prime factors. Cofactor is composite.

Factored

Factor	Digits	Bits	Date
44646003767924936929	20	65.3	2010-11-20 10:35:03
120835391001557329919	21	66.7	2020-08-06 11:02:19

ECM

Digits	B1	Curves
25	50000	61 / 280

Estimated T-Level: 21.1 ⓘ

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

Status	Date	User	Residue	Shift
Verified (Factored)		Stephen Wood	2FB16E01DFDD6AD9	0
Verified (Factored)	1999-07-04	Steven Laux	2FB16E01DFDD6AD9	2546536
Verified (Factored)	1999-07-12	Ian Bucklar	2FB16E01DFDD6AD9	1348491

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-10-21	Oliver Kruse	E5C79F35AEA16928	1	1570383	5	3
Verified (Factored)	2017-12-06	kkmrkkblmbrbk	E5C79F35AEA16928	1	1635397	5	3
Verified	2020-08-06	ATH	E5C79F35AEA16928	2	456095	5	3

History

Date	User	Type	Result
2022-03-10	LordJulius	NF	no factor from 2^64 to 2^65
2022-03-10	LordJulius	NF	no factor from 2^63 to 2^64
2022-03-10	LordJulius	NF	no factor from 2^62 to 2^63
2022-03-10	LordJulius	NF	no factor from 2^61 to 2^62
2021-09-10	Dylan Delgado	NF-PM1	B1=1000000, B2=71000000
2020-08-06	ATH	CERT	PRP Certification Proof certified good
2020-08-06	ATH	C-PRP	M2803369/44646003767924936929/120835391001557329919 : E5C79F35AEA16928 PRP proof power = 7 PRP: Verified Proof certified good
2020-08-06	TJAOI	F	Factor: 120835391001557329919 / TF: 66-67
2017-12-06	kkmrkkblmbrbk	C-PRP	M2803369/44646003767924936929 : E5C79F35AEA16928 PRP: Verified (Factored) PRP without proof (not generated)
2017-10-21	Oliver Kruse	C-PRP	M2803369/44646003767924936929 : E5C79F35AEA16928 PRP: Verified (Factored) PRP without proof (not generated)
2010-11-20	markr	F-PM1	Factor: 44646003767924936929
2010-11-12	Joss	NF-PM1	B1=15000
2009-02-13	Sturle Sunde	NF	no factor from 2^60 to 2^61