4 664 669 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
208930524511	12	37.6	old
111263152958774539721	21	66.6	2019-03-19 03:45:15

ECM

Digits	B1	Curves
25	50000	1 / 280

Estimated T-Level: 20.0 ⓘ

TF below 2^61 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	86C630A20E577F0A	1	0	1	3
Verified (Factored)	2018-03-04	ATH	86C630A20E577F0A	1	4175293	1	3
Verified	2019-03-19	artorollo	A61DDCCF9478F263	2	1197982	5	3
Verified	2019-03-19	ATH	A61DDCCF9478F263	2	482388	5	3

History

Date	User	Type	Result
2023-08-21	USAFSS	NF-PM1	B1=240000, B2=91991760
2019-03-19	ATH	C-PRP	M4664669/208930524511/111263152958774539721 : A61DDCCF9478F263 PRP: Verified PRP without proof (not generated)
2019-03-19	artorollo	C-PRP	M4664669/208930524511/111263152958774539721 : A61DDCCF9478F263 PRP: Verified PRP without proof (not generated)
2019-03-19	MarkS	F-ECM	Factor: 111263152958774539721 / (ECM curve 1, B1=50000, B2=5000000)
2018-03-04	ATH	C-PRP	M4664669/208930524511 : 86C630A20E577F0A PRP: Verified PRP without proof (not generated)
2017-09-20	kkmrkkblmbrbk	C-PRP	M4664669/208930524511 : 86C630A20E577F0A PRP: Verified PRP without proof (not generated)