56 182 681 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 2⁷⁴

TF target 2⁷³

P-1

B1 =	565000
B2 =	12288750

Status	Date	User	Residue	Shift
Unverified	2013-02-02	ebravick	C91513B29CAFF8__	31023960

Status	Date	User	Residue	Shift	Type	Base
Unverified (Reliable)	2021-04-20	Conductor	1654F198644C27__	4946480	1	3
Verified	2021-04-30	Conductor	1654F198644C27B4	4946480	1	3
Verified	2024-03-13	Jason Lynch	1654F198644C27B4	14947850	1	3

History

Date	User	Type	Result
2024-03-13	curtisc	CERT	PRP Certification CERT proof power = 9 Proof certified good
2024-03-13	Jason Lynch	C-PRP	1654F198644C27B4 PRP proof power = 9 PRP: Verified Proof certified good
2021-04-30	ky0uraku	CERT	PRP Certification CERT proof power = 9 Proof certified good
2021-04-30	Conductor	C-PRP	1654F198644C27B4 PRP proof power = 9 PRP: Verified Proof certified good
2018-05-19	ktony	NF	no factor from 2^73 to 2^74
2016-02-23	Mark Rose	NF	no factor from 2^60 to 2^63
2015-12-30	-Anonymous-	NF	no factor from 2^72 to 2^73
2013-02-02	ebravick	C-LL	C91513B29CAFF8__
2012-08-12	kurly	NF-PM1	B1=565000, B2=12288750, E=12
2012-05-01	bcp19	NF	no factor from 2^71 to 2^72
2011-11-02	Ethan O'Connor	NF	no factor from 2^70 to 2^71
2011-07-22	TheJudger	NF	no factor from 2^68 to 2^70
2009-11-19	Gnorfe	NF	no factor from 2^67 to 2^68
2008-07-06	Sturle Sunde	NF	no factor from 2^66 to 2^67
2008-07-05	Sturle Sunde	NF	no factor from 2^65 to 2^66
2008-07-05	Sturle Sunde	NF	no factor from 2^64 to 2^65
2008-07-04	Sturle Sunde	NF	no factor from 2^63 to 2^64