5 039 681 Exponent Status

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

PrimeNet Exponent Status

M_n

Details

Composite, with 1 known prime factor. Cofactor is composite.

Trial Factored to 2⁷⁰

TF target 2⁶⁵

Factored

Factor	Digits	Bits	Date
93692525406035361023	20	66.3	2014-05-26 05:51:51

ECM

Digits	B1	Curves
25	50000	5 / 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	Software
Factored	1998-06-14	INTERSHOP Communications	BFB61A5ADB0C9AC8	0	Windows,Prime95,v15,NT service,(aka WR5)
Factored	2000-05-05	Andrew Folkins	BFB61A5ADB0C9AC8	576525	OS/2,Prime95,v18,(aka WU7)

Status	Proof	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	PRP without proof (not generated)	2017-11-22	storm5510	5CB4DA60B3A31522	1	447013	5	3
Verified	PRP without proof (not generated)	2018-01-17	kkmrkkblmbrbk	5CB4DA60B3A31522	1	4849773	5	3

History

Date	User	Type	Result
2025-02-17	Sid & Andy	NF-PM1	B1=5200000, B2=7513644600
2025-01-08	Sid & Andy	NF	no factor TF: 68-70
2023-04-14	Kevin_9611	NF-PM1	B1=330000, B2=178871550
2018-01-17	kkmrkkblmbrbk	C-PRP	M5039681/93692525406035361023 : 5CB4DA60B3A31522
2017-11-22	storm5510	C-PRP	M5039681/93692525406035361023 : 5CB4DA60B3A31522
2014-05-26	S36049	F-ECM	Factor: 93692525406035361023
2009-07-23	USAFSS	NF-PM1	B1=55000, B2=907500, E=6
2006-01-15	Joss	NF-PM1	B1=10000
2000-05-05	-anonymous-	C-LL	BFB61A5ADB0C9AC8
1998-06-14	netconx	C-LL	BFB61A5ADB0C9AC8
1998-02-08	-anonymous-	NF	no factor TF: 1-61
1998-01-26	-anonymous-	NF	no factor TF: 1-61