8 255 197 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
132083153	9	27.0	old

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2018-10-26	J.R. Allen	D44A4B4F276D63CB	1	4227784	5	3
Verified	2020-03-28	arnaud	D44A4B4F276D63CB	1	3757266	5	3

History

Date	User	Type	Result
2024-04-04	Stef42	NF-PM1	B1=976000, B2=2281600230
2020-03-28	arnaud	C-PRP	M8255197/132083153 : D44A4B4F276D63CB PRP: Verified PRP without proof (not generated)
2018-10-26	J.R. Allen	C-PRP	M8255197/132083153 : D44A4B4F276D63CB PRP: Verified PRP without proof (not generated)

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