2 796 373 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
3234288868820500663	19	61.5	2009-03-20 21:14:52
5638429602883527546097	22	72.3	2023-01-29 12:06:51

ECM

Digits	B1	Curves
25	50000	3 / 280

Estimated T-Level: 20.1 ⓘ

TF below 2^62 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Timo Aaltonen and friends	743DC5FFD9B8021D	0
Verified (Factored)	1999-07-12	Stephen Wood	743DC5FFD9B8021D	289225

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-10-21	Oliver Kruse	C0DD1AB02C733518	1	2049053	5	3
Verified (Factored)	2017-12-06	kkmrkkblmbrbk	C0DD1AB02C733518	1	560537	5	3
Verified	2023-01-31	LordJulius	C0DD1AB02C733518	2	1837286	5	3

P-1 factors

Date	Factor	B1	B2
2023-01-29	5638429602883527546097	360000	287380170

History

Date	User	Type	Result
2023-01-31	x-s-y-	CERT	PRP Certification Proof certified good
2023-01-31	LordJulius	C-PRP	M2796373/3234288868820500663/5638429602883527546097 : C0DD1AB02C733518 PRP proof power = 7 PRP: Verified Proof certified good
2023-01-29	USAFSS	F-PM1	Factor: 5638429602883527546097 / (P-1, B1=360000, B2=287380170)
2017-12-06	kkmrkkblmbrbk	C-PRP	M2796373/3234288868820500663 : C0DD1AB02C733518 PRP: Verified (Factored) PRP without proof (not generated)
2017-10-21	Oliver Kruse	C-PRP	M2796373/3234288868820500663 : C0DD1AB02C733518 PRP: Verified (Factored) PRP without proof (not generated)
2009-03-20	Aca Arsov	F-ECM	Factor: 3234288868820500663
2009-02-14	Sturle Sunde	NF	no factor from 2^60 to 2^61