9 688 781 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 2⁶⁹

TF target 2⁶⁸

Factored

Factor	Digits	Bits	Date
4243686079	10	32.0	old

Status	Proof	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	PRP without proof (not generated)	2019-10-15	fre_games	978F4524EC3B5DB8	1	9423754	5	3
Verified	Certified Good	2020-12-22	storm5510	978F4524EC3B5DB8	1	1428133	5	3

History

Date	User	Type	Result
2026-01-17	Mingye Wang	NF-PM1	B1=1700000, B2=3458233350
2025-12-12	Mingye Wang	NF	no factor TF: 68-69
2020-12-22	GP97	CERT	Proof certified good
2020-12-22	storm5510	C-PRP	M9688781/4243686079 : 978F4524EC3B5DB8 Proof Certified Good Proof Power: 8
2019-10-15	fre_games	C-PRP	M9688781/4243686079 : 978F4524EC3B5DB8

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