129 219 581 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 2⁷⁷

TF target 2⁷⁷

P-1

B1 =	1115000
B2 =	1502428200

Status	Date	User	Residue	Shift	Type	Base
Verified	2024-08-22	Luke Durant	840FAA16DF8E982E	0	1	3

History

Date	User	Type	Result
2024-08-22	Ryan Propper	CERT	PRP Certification CERT proof power = 8 Proof certified good
2024-08-22	Luke Durant	C-PRP	840FAA16DF8E982E PRP proof power = 8 PRP: Verified Proof certified good
2024-07-31	Luke Durant	NF-PM1	B1=1115000, B2=1502428200
2023-03-06	TravisJank	NF	no factor from 2^76 to 2^77
2023-03-06	TravisJank	NF	no factor from 2^75 to 2^76
2022-12-24	SRBase	NF	no factor from 2^74 to 2^75
2021-07-15	SRBase	NF	no factor from 2^73 to 2^74
2020-10-23	SRBase	NF	no factor from 2^72 to 2^73
2016-05-16	Andrew B	NF	no factor from 2^71 to 2^72
2016-05-11	proxy2222	NF	no factor from 2^70 to 2^71
2016-05-11	proxy2222	NF	no factor from 2^69 to 2^70
2016-05-11	proxy2222	NF	no factor from 2^68 to 2^69
2016-02-21	proxy2222	NF	no factor from 2^67 to 2^68
2015-01-13	ANONYMOUS	NF	no factor from 2^66 to 2^67
2012-10-04	OS1	NF	no factor from 2^65 to 2^66
2010-11-10	OS1	NF	no factor from 2^64 to 2^65
2010-05-31	Torchwood Institute	NF	no factor from 2^63 to 2^64