80 960 573 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

Composite: proven not-prime with PRP test

TF

No factors below 2⁷⁵

TF target 2⁷⁵

P-1

B1 =	690000
B2 =	13972500

Status	Date	User	Residue	Shift
Unverified	2018-01-21	JMGarcia	7B1BAFA0EEB8C4__	64428748

Status	Date	User	Residue	Shift	Type	Base
Verified	2024-11-27	Mirra	B3C4E373D2FECDAD	0	1	3

History

Date	User	Type	Result
2024-11-27	Aldo M. Vega Sánchez	CERT	PRP Certification CERT proof power = 9 Proof certified good
2024-11-27	Mirra	C-PRP	B3C4E373D2FECDAD PRP proof power = 9 PRP: Verified Proof certified good
2018-01-21	JMGarcia	C-LL	7B1BAFA0EEB8C4__
2017-04-03	bam	NF-PM1	B1=690000, B2=13972500, E=12
2016-09-23	Tim Sorbera	NF	no factor from 2^74 to 2^75
2016-09-23	Tim Sorbera	NF	no factor from 2^73 to 2^74
2013-06-25	Juergen Kampmeier	NF	no factor from 2^72 to 2^73
2013-06-25	Juergen Kampmeier	NF	no factor from 2^71 to 2^72
2013-06-25	Juergen Kampmeier	NF	no factor from 2^70 to 2^71
2011-02-22	symallad	NF	no factor from 2^69 to 2^70
2011-02-20	J. Honess	NF	no factor from 2^68 to 2^69
2011-02-13	opyrt	NF	no factor from 2^67 to 2^68
2011-02-10	opyrt	NF	no factor from 2^66 to 2^67
2011-02-05	Ungelovende	NF	no factor from 2^65 to 2^66
2010-12-11	Architects Cubed	NF	no factor from 2^64 to 2^65