4 965 419 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
39723353	8	25.2	old
210096808729	12	37.6	2008-09-08 00:21:08
101351972135154975823	21	66.5	2019-08-20 06:40:20

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	844EDB32A9B891AF	2	0	1	3
Verified (Factored)	2018-04-22	Oliver Kruse	844EDB32A9B891AF	2	3239972	1	3
Verified	2019-08-20	mnd9	638393CAD420F8CA	3	4021724	5	3
Verified	2019-08-20	ATH	638393CAD420F8CA	3	899622	5	3

History

Date	User	Type	Result
2023-12-01	USAFSS	NF-PM1	B1=256000, B2=105522060
2019-08-20	ATH	C-PRP	M4965419/39723353/210096808729/101351972135154975823 : 638393CAD420F8CA PRP: Verified PRP without proof (not generated)
2019-08-20	mnd9	C-PRP	M4965419/39723353/210096808729/101351972135154975823 : 638393CAD420F8CA PRP: Verified PRP without proof (not generated)
2019-08-20	MarkS	F-ECM	Factor: 101351972135154975823 / (ECM curve 3, B1=50000, B2=5000000)
2018-04-22	Oliver Kruse	C-PRP	M4965419/39723353/210096808729 : 844EDB32A9B891AF PRP: Verified PRP without proof (not generated)
2017-09-20	kkmrkkblmbrbk	C-PRP	M4965419/210096808729/39723353 : 844EDB32A9B891AF PRP: Verified PRP without proof (not generated)
2008-09-08	Will Edgington	F	Factor: 210096808729