8 328 209 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 2⁶⁸

Factored

Factor	Digits	Bits	Date
19338786076656817	17	54.1	old

Status	Proof	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	PRP without proof (not generated)	2018-10-23	Hazar Temizel	6ADDB0C1E6FC9400	1	7423450	5	3
Verified	PRP without proof (not generated)	2020-04-21	marssystems	6ADDB0C1E6FC9400	1	3846257	5	3

History

Date	User	Type	Result
2024-06-10	Stef42	NF-PM1	B1=1375000, B2=2725257990
2020-04-21	marssystems	C-PRP	M8328209/19338786076656817 : 6ADDB0C1E6FC9400
2018-10-23	Hazar Temizel	C-PRP	M8328209/19338786076656817 : 6ADDB0C1E6FC9400
1998-09-06	Mark D	F	Factor: 19338786076656817

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