8 331 523 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 2⁶⁸

TF target 2⁶⁸

Factored

Factor	Digits	Bits	Date
54201506039663	14	45.6	old

Status	Proof	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	PRP without proof (not generated)	2018-10-15	Oliver Kruse	40D50CFABF551409	1	1217320	5	3
Verified	PRP without proof (not generated)	2020-04-21	ATH	40D50CFABF551409	1	1916998	5	3

History

Date	User	Type	Result
2024-05-10	Stef42	NF-PM1	B1=1025000, B2=1519818300
2020-04-21	ATH	C-PRP	M8331523/54201506039663 : 40D50CFABF551409
2018-10-15	Oliver Kruse	C-PRP	M8331523/54201506039663 : 40D50CFABF551409

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