74 433 907 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
8851585217744433227501340616144864335985889	43	142.7	2015-11-10 17:22:36

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2024-02-27	Naegi Makoto	F84C75AF6169FAA3	1	12886315	5	3

P-1 factors

Date	Factor	B1	B2
2015-11-10	8851585217744433227501340616144864335985889	635000	11906250

History

Date	User	Type	Result
2024-02-27	ANONYMOUS	CERT	PRP Certification Proof certified good
2024-02-27	Naegi Makoto	C-PRP	M74433907/8851585217744433227501340616144864335985889 : F84C75AF6169FAA3 PRP proof power = 9 PRP: Verified Proof certified good
2024-01-29	Naegi Makoto	NF-PM1	B1=2000000, B2=1561107240
2024-01-29	Naegi Makoto	NF	no factor from 2^75 to 2^76
2015-11-10	driveByUpgrades	F-PM1	Factor: 8851585217744433227501340616144864335985889
2015-11-01	TheJudger	NF	no factor from 2^74 to 2^75
2015-11-01	TheJudger	NF	no factor from 2^73 to 2^74
2015-10-08	Judge Hale	NF	no factor from 2^72 to 2^73
2015-08-18	Judge Hale	NF	no factor from 2^71 to 2^72
2013-05-13	PascalBieri	NF	no factor from 2^70 to 2^71
2012-10-28	SMoffat	NF	no factor from 2^69 to 2^70
2010-07-29	CJPage	NF	no factor from 2^68 to 2^69
2010-07-24	DRH	NF	no factor from 2^67 to 2^68
2010-07-20	Wojciech Tarczynski	NF	no factor from 2^66 to 2^67
2010-07-14	TeraTism	NF	no factor from 2^65 to 2^66
2010-07-13	lindee	NF	no factor from 2^64 to 2^65
2008-09-12	lycorn	NF	no factor to 2^64