198 180 559 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

TF

No factors below 2⁷⁹

TF target 2⁷⁸

P-1

B1 =	1253000
B2 =	250642350

Status	Date	User	Residue	Shift	Type	Base
Verified	2023-01-31	Kriesel	A2E1C12A65C7A150	0	1	3

History

Date	User	Type	Result
2023-01-31	David	CERT	PRP Certification CERT proof power = 9 Proof certified good
2023-01-31	Kriesel	C-PRP	A2E1C12A65C7A150 PRP proof power = 9 PRP: Verified Proof certified good
2023-01-25	Kriesel	NF-PM1	B1=1253000, B2=250642350
2023-01-24	Kriesel	NF	no factor from 2^78 to 2^79
2023-01-24	Kriesel	NF	no factor from 2^77 to 2^78
2023-01-24	Kriesel	NF	no factor from 2^76 to 2^77
2023-01-24	Kriesel	NF	no factor from 2^75 to 2^76
2023-01-24	Kriesel	NF	no factor from 2^74 to 2^75
2020-01-02	S00030	NF	no factor from 2^73 to 2^74
2019-05-31	Samuel Schmidt	NF	no factor from 2^72 to 2^73
2019-05-16	Samuel Schmidt	NF	no factor from 2^71 to 2^72
2019-02-15	Niels_Mache_Nextcloud	NF	no factor from 2^70 to 2^71
2018-12-24	Chabot Prime	NF	no factor from 2^69 to 2^70
2017-09-09	tsc	NF	no factor from 2^68 to 2^69
2016-08-13	XZT	NF	no factor from 2^67 to 2^68
2015-09-19	Robert Folz	NF	no factor from 2^66 to 2^67
2013-07-04	sasaki3	NF	no factor from 2^65 to 2^66
2011-04-26	dsl	NF	no factor from 2^64 to 2^65
2010-09-10	1997rj7	NF	no factor from 2^63 to 2^64