2 489 831 Exponent Status

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

PrimeNet Exponent Status

M_n

Details

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

Trial Factored to 2⁶⁸

TF target 2⁶³

Factored

Factor	Digits	Bits	Date
139430537	9	27.1	old
22408479001	11	34.4	2008-07-14 20:24:18
241852224017	12	37.8	2008-07-14 20:24:18
59402113683359407	17	55.7	2015-02-10 12:39:28

ECM

Digits	B1	Curves
25	50000	211 / 280

Estimated T-Level: 23.8 ⓘ

TF below 2^74 is very unlikely to find new factors due to ECM effort.

Status	Proof	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	PRP without proof (not generated)	2017-10-14	Oliver Kruse	A49725E186DEB432	4	1104878	5	3
Verified	PRP without proof (not generated)	2017-11-29	storm5510	A49725E186DEB432	4	1471051	5	3

History

Date	User	Type	Result
2022-08-19	USAFSS	NF-PM1	B1=224000, B2=203668920
2017-11-29	storm5510	C-PRP	M2489831/139430537/22408479001/241852224017/59402113683359407 : A49725E186DEB432
2017-10-14	Oliver Kruse	C-PRP	M2489831/139430537/22408479001/241852224017/59402113683359407 : A49725E186DEB432
2015-02-10	TJAOI	F	Factor: 59402113683359407
2008-07-14	George Woltman	F-ECM	Factor: 241852224017
2008-07-14	George Woltman	F-ECM	Factor: 22408479001

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