149 304 971 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 2⁷⁸

TF target 2⁷⁷

P-1

B1 =	829000
B2 =	77999670

Status	Date	User	Residue	Shift	Type	Base
Verified	2025-01-02	GdS	0C83757882D31029	0	1	3

History

Date	User	Type	Result
2025-01-04	Xyzzy	CERT	PRP Certification CERT proof power = 10 Proof certified good
2025-01-02	GdS	C-PRP	0C83757882D31029 PRP proof power = 10 PRP: Verified Proof certified good
2024-11-12	Ryan Propper	NF-PM1	B1=829000, B2=77999670
2024-09-19	Luke Durant	NF	no factor from 2^77 to 2^78
2024-08-23	mezon	NF	no factor from 2^76 to 2^77
2024-08-01	SRBase	NF	no factor from 2^75 to 2^76
2023-02-06	SRBase	NF	no factor from 2^74 to 2^75
2017-10-30	SRS Technology	NF	no factor from 2^73 to 2^74
2017-10-30	SRS Technology	NF	no factor from 2^72 to 2^73
2017-10-30	SRS Technology	NF	no factor from 2^71 to 2^72
2017-10-30	SRS Technology	NF	no factor from 2^70 to 2^71
2017-08-18	proxy2222	NF	no factor from 2^69 to 2^70
2017-02-19	rmaximus	NF	no factor from 2^68 to 2^69
2016-04-06	Derek	NF	no factor from 2^67 to 2^68
2015-03-16	Grant McCracken	NF	no factor from 2^66 to 2^67
2013-01-13	Richard	NF	no factor from 2^65 to 2^66
2011-01-08	Architects Cubed	NF	no factor from 2^64 to 2^65