3 597 949 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
2925048575262137	16	51.4	old
8238194776323281761	19	62.8	2016-10-24 11:21:25

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	Number of known factors	Shift	Type	Base
Verified	2017-11-10	kkmrkkblmbrbk	2E92771487CD93A4	2	241214	5	3
Verified	2017-11-26	Oliver Kruse	2E92771487CD93A4	2	2553868	5	3

History

Date	User	Type	Result
2022-06-05	LordJulius	NF	no factor from 2^66 to 2^67
2022-06-05	LordJulius	NF	no factor from 2^65 to 2^66
2022-06-05	LordJulius	NF	no factor from 2^64 to 2^65
2022-06-05	LordJulius	NF	no factor from 2^63 to 2^64
2022-05-20	Joss	NF-PM1	B1=100000, B2=130364850
2022-03-19	Lisander Viaene	NF-PM1	B1=100000, B2=234869250
2022-03-19	Lisander Viaene	NF-PM1	B1=100000
2022-03-16	Joss	NF	no factor from 2^67 to 2^68
2017-11-26	Oliver Kruse	C-PRP	M3597949/2925048575262137/8238194776323281761 : 2E92771487CD93A4 PRP: Verified PRP without proof (not generated)
2017-11-10	kkmrkkblmbrbk	C-PRP	M3597949/2925048575262137/8238194776323281761 : 2E92771487CD93A4 PRP: Verified PRP without proof (not generated)
2016-10-24	TJAOI	F	Factor: 8238194776323281761 / TF: 62-63