83 780 327 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 2⁷⁶

TF target 2⁷⁵

P-1

B1 =	690000
B2 =	13455000

Status	Date	User	Residue	Shift
Unverified	2019-03-11	arnaud	8B650D85394C72__	62787521

Status	Date	User	Residue	Shift	Type	Base
Verified	2021-10-16	Kriesel	7CD55F13C8FE5A36	0	1	3

History

Date	User	Type	Result
2021-10-16	Ben Delo	CERT	PRP Certification Proof certified good
2021-10-16	Kriesel	C-PRP	7CD55F13C8FE5A36 PRP: Verified Proof certified good
2019-03-11	arnaud	C-LL	8B650D85394C72__
2019-02-04	ATH	NF	no factor from 2^63 to 2^64
2019-02-04	ATH	NF	no factor from 2^1 to 2^63
2017-03-09	Architects Cubed	NF-PM1	B1=690000, B2=13455000, E=6
2017-03-05	TheJudger	NF	no factor from 2^75 to 2^76
2017-01-28	endless_mike	NF	no factor from 2^74 to 2^75
2017-01-28	endless_mike	NF	no factor from 2^73 to 2^74
2016-12-10	Judge Hale	NF	no factor from 2^72 to 2^73
2014-01-15	SMoffat	NF	no factor from 2^71 to 2^72
2013-07-24	willmore	NF	no factor from 2^70 to 2^71
2013-06-14	PascalBieri	NF	no factor from 2^69 to 2^70
2013-06-13	PascalBieri	NF	no factor from 2^68 to 2^69
2013-02-15	fiberlion	NF	no factor from 2^67 to 2^68
2013-02-15	Juergen Kampmeier	NF	no factor from 2^66 to 2^67
2012-09-12	Carsten Kossendey	NF	no factor from 2^65 to 2^66
2010-12-14	Architects Cubed	NF	no factor from 2^64 to 2^65