2 434 339 Exponent Status

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

PrimeNet Exponent Status

M_n

Details

Composite, with 1 known prime factor. Cofactor is composite.

Trial Factored to 2⁶⁸

TF target 2⁶³

Factored

Factor	Digits	Bits	Date
321942155556583	15	48.2	old

ECM

Digits	B1	Curves
25	50000	102 / 280

Estimated T-Level: 21.8 ⓘ

TF below 2^67 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)	2017-10-13	Oliver Kruse	857C6D08CBDD1393	1	1503160	5	3
Verified	PRP without proof (not generated)	2017-11-27	storm5510	857C6D08CBDD1393	1	939393	5	3

History

Date	User	Type	Result
2018-09-28	alpertron	NF-PM1	B1=2000000, B2=60000000, E=12
2017-11-27	storm5510	C-PRP	M2434339/321942155556583 : 857C6D08CBDD1393
2017-10-13	Oliver Kruse	C-PRP	M2434339/321942155556583 : 857C6D08CBDD1393

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