4 764 229 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
1248227999	10	30.2	old
41048401789649325769	20	65.2	2018-06-28 12:20:02

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	38EED5908E8DF9D9	1	0	1	3
Verified (Factored)	2018-03-18	trebor	38EED5908E8DF9D9	1	339462	1	3
Verified	2018-06-29	francijezek	B2A1D0B55FB08E72	2	1360372	5	3
Verified	2018-07-02	_p95holder_	B2A1D0B55FB08E72	2	4146603	5	3

History

Date	User	Type	Result
2023-10-08	USAFSS	NF-PM1	B1=240000, B2=91991760
2018-07-02	_p95holder_	C-PRP	M4764229/1248227999/41048401789649325769 : B2A1D0B55FB08E72 PRP: Verified PRP without proof (not generated)
2018-06-29	francijezek	C-PRP	M4764229/1248227999/41048401789649325769 : B2A1D0B55FB08E72 PRP: Verified PRP without proof (not generated)
2018-06-28	TJAOI	F	Factor: 41048401789649325769 / TF: 65-66
2018-03-18	trebor	C-PRP	M4764229/1248227999 : 38EED5908E8DF9D9 PRP: Verified PRP without proof (not generated)
2017-09-20	kkmrkkblmbrbk	C-PRP	M4764229/1248227999 : 38EED5908E8DF9D9 PRP: Verified PRP without proof (not generated)