6 221 819 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

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

Factored

Factor	Digits	Bits	Date
222495793876831	15	47.7	old

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-10-12	kkmrkkblmbrbk	2270F0217DA21B3E	1	5159456	5	3
Verified	2018-09-23	rucio	2270F0217DA21B3E	1	793055	5	3

History

Date	User	Type	Result
2023-10-25	Stef42	NF-PM1	B1=109000, B2=234141600
2018-09-23	rucio	C-PRP	M6221819/222495793876831 : 2270F0217DA21B3E PRP: Verified PRP without proof (not generated)
2017-10-12	kkmrkkblmbrbk	C-PRP	M6221819/222495793876831 : 2270F0217DA21B3E PRP: Verified PRP without proof (not generated)

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