3 862 939 Exponent Status

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

PrimeNet Exponent Status

M_n

Details

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

Trial Factored to 2⁶⁸

TF target 2⁶⁴

Factored

Factor	Digits	Bits	Date
16582811721968399	17	53.9	old
692623538859313991	18	59.3	2015-11-06 12:46:20

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	Proof	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	PRP without proof (not generated)	2017-09-20	kkmrkkblmbrbk	BC93ED90D015AA32	2	0	1	3
Verified	PRP without proof (not generated)	2017-12-23	storm5510	BC93ED90D015AA32	2	1942246	1	3

History

Date	User	Type	Result
2022-06-19	LordJulius	NF	no factor TF: 66-67
2022-06-19	LordJulius	NF	no factor TF: 65-66
2022-06-19	LordJulius	NF	no factor TF: 63-64
2022-06-19	LordJulius	NF	no factor TF: 64-65
2022-06-19	LordJulius	NF	no factor TF: 60-63
2022-05-20	Joss	NF-PM1	B1=200000, B2=130364850
2022-04-17	Joss	NF-PM1	B1=200000
2022-03-16	Joss	NF	no factor TF: 67-68
2017-12-23	storm5510	C-PRP	M3862939/16582811721968399/692623538859313991 : BC93ED90D015AA32
2017-09-20	kkmrkkblmbrbk	C-PRP	M3862939/16582811721968399/692623538859313991 : BC93ED90D015AA32
2015-11-06	TJAOI	F	Factor: 692623538859313991