8 315 429 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 2⁶⁸

Factored

Factor	Digits	Bits	Date
15882469391	11	33.9	old
123251288639	12	36.8	2008-09-08 04:30:13

Status	Proof	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	PRP without proof (not generated)	2018-10-11	Oliver Kruse	60B0E4488D3CE990	2	2578023	5	3
Verified	PRP without proof (not generated)	2020-04-18	arnaud	60B0E4488D3CE990	2	2802437	5	3

History

Date	User	Type	Result
2024-06-10	Stef42	NF-PM1	B1=1361000, B2=2725257990
2020-04-18	arnaud	C-PRP	M8315429/15882469391/123251288639 : 60B0E4488D3CE990
2018-10-11	Oliver Kruse	C-PRP	M8315429/15882469391/123251288639 : 60B0E4488D3CE990
2008-09-08	Will Edgington	F	Factor: 123251288639

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