2 346 313 Exponent Status

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

PrimeNet Exponent Status

M_n

Details

Composite, with 2 known prime factors. Cofactor is composite.

Trial Factored to 2⁶⁸

TF target 2⁶²

Factored

Factor	Digits	Bits	Date
56311513	8	25.7	old
5068036081	10	32.2	2008-07-14 20:23:12

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	127 / 640

Estimated T-Level: 26.0 ⓘ

TF below 2^81 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)	2017-10-12	Oliver Kruse	8B7D353FBBB8A17A	2	0	1	3
Verified	PRP without proof (not generated)	2017-11-24	storm5510	8B7D353FBBB8A17A	2	2009263	1	3

History

Date	User	Type	Result
2018-03-18	alpertron	NF-PM1	B1=500000, B2=15000000, E=12
2017-11-24	storm5510	C-PRP	M2346313/56311513/5068036081 : 8B7D353FBBB8A17A
2017-10-12	Oliver Kruse	C-PRP	M2346313/56311513/5068036081 : 8B7D353FBBB8A17A
2008-07-14	George Woltman	F-ECM	Factor: 5068036081

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