4 667 609 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
364969682929	12	38.4	old
252768132181581731927273	24	77.7	2019-03-19 21:51:30

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 (Factored)	2017-09-20	kkmrkkblmbrbk	BD9498F962C09212	1	0	1	3
Verified (Factored)	2018-03-04	ATH	BD9498F962C09212	1	2479091	1	3
Verified	2019-03-21	_p95holder_	7117A8DE9D39B745	2	2096794	5	3
Verified	2019-03-22	kkmrkkblmbrbk	7117A8DE9D39B745	2	2702499	5	3

History

Date	User	Type	Result
2023-08-25	USAFSS	NF-PM1	B1=240000, B2=91991760
2019-03-22	kkmrkkblmbrbk	C-PRP	M4667609/364969682929/252768132181581731927273 : 7117A8DE9D39B745 PRP: Verified PRP without proof (not generated)
2019-03-21	_p95holder_	C-PRP	M4667609/364969682929/252768132181581731927273 : 7117A8DE9D39B745 PRP: Verified PRP without proof (not generated)
2019-03-19	ATH	F-ECM	Factor: 252768132181581731927273 / (ECM curve 3, B1=50000, B2=5000000, Sigma=2748790264932472)
2018-03-04	ATH	C-PRP	M4667609/364969682929 : BD9498F962C09212 PRP: Verified PRP without proof (not generated)
2017-09-20	kkmrkkblmbrbk	C-PRP	M4667609/364969682929 : BD9498F962C09212 PRP: Verified PRP without proof (not generated)