28 490 411 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

Composite: 1 known prime factor

Factored

Factor	Digits	Bits	Date
526560859818886078273	21	68.8	2012-01-30 07:12:12

Status	Date	User	Residue	Shift
Verified (Factored)	2005-05-28	Les Stockton	3ACCD69AF7271317	4019578

History

Date	User	Type	Result
2024-05-16	James Heinrich	F	Factor: 526560859818886078273 / TF: 68-71
2012-01-30	Carsten Kossendey	F	Factor: 526560859818886078273
2012-01-30	Carsten Kossendey	NF	no factor from 2^68 to 2^71

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