2 651 483 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

Composite, with 4 known prime factors. Cofactor is composite.

Factored

Factor	Digits	Bits	Date
5302967	7	22.3	old
1034542018923313	16	49.9	2014-05-15 11:24:29
992575496196728503	18	59.8	2015-12-14 12:36:36
684301988299818875249	21	69.2	2019-01-27 14:03:57

ECM

Digits	B1	Curves
25	50000	138 / 280

Estimated T-Level: 22.5 ⓘ

TF below 2^70 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-09-30	alpertron	B31C0B2573306710	3	0	1	3
Verified (Factored)	2017-11-14	Oliver Kruse	B31C0B2573306710	3	1180538	1	3
Verified	2019-01-28	artorollo	7E340FB8B989F629	4	1463195	5	3
Verified	2019-01-29	kkmrkkblmbrbk	7E340FB8B989F629	4	2373809	5	3

P-1 factors

Date	Factor	B1	B2
2019-01-27	684301988299818875249	5302	0

History

Date	User	Type	Result
2019-07-04	alpertron	NF-PM1	B1=2000000, B2=60000000, E=12
2019-01-29	kkmrkkblmbrbk	C-PRP	M2651483/5302967/1034542018923313/992575496196728503/684301988299818875249 : 7E340FB8B989F629 PRP: Verified PRP without proof (not generated)
2019-01-28	artorollo	C-PRP	M2651483/5302967/1034542018923313/992575496196728503/684301988299818875249 : 7E340FB8B989F629 PRP: Verified PRP without proof (not generated)
2019-01-27	Joss	F-PM1	Factor: 684301988299818875249 / (P-1, B1=5302)
2017-11-14	Oliver Kruse	C-PRP	M2651483/5302967/1034542018923313/992575496196728503 : B31C0B2573306710 PRP: Verified PRP without proof (not generated)
2017-09-30	alpertron	C-PRP	M2651483/1034542018923313/5302967/992575496196728503 : B31C0B2573306710 PRP: Verified PRP without proof (not generated)
2015-12-14	TJAOI	F	Factor: 992575496196728503 / TF: 59-60
2014-05-15	TJAOI	F	Factor: 1034542018923313