65 432 531 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 Lucas-Lehmer test

TF

No factors below 2⁷⁶

TF target 2⁷⁴

P-1

B1 =	585000
B2 =	11700000

Status	Date	User	Residue	Shift
Verified	2014-09-13	mihaiyo	286C4E6361350130	41998362
Verified	2023-09-15	James Carlson	286C4E6361350130	23930365

History

Date	User	Type	Result
2023-09-15	James Carlson	C-LL	286C4E6361350130
2020-05-31	-Anonymous-	NF	no factor from 2^75 to 2^76
2019-10-13	Mark Rose	NF	no factor from 2^74 to 2^75
2016-03-28	Mark Rose	NF	no factor from 2^60 to 2^63
2014-09-13	mihaiyo	C-LL	286C4E6361350130
2013-08-13	Abdullah Baig	NF-PM1	B1=585000, B2=11700000
2013-08-10	Jerry Hallett	NF	no factor from 2^73 to 2^74
2013-05-21	TheJudger	NF	no factor from 2^72 to 2^73
2013-05-21	TheJudger	NF	no factor from 2^71 to 2^72
2013-05-21	TheJudger	NF	no factor from 2^70 to 2^71
2012-02-12	ANONYMOUS	NF	no factor from 2^69 to 2^70
2010-01-14	Jeff Palmer	NF	no factor from 2^68 to 2^69
2010-01-07	arnaud	NF	no factor from 2^67 to 2^68
2010-01-06	]mh[ Virtek	NF	no factor from 2^66 to 2^67
2010-01-03	]mh[ Virtek	NF	no factor from 2^65 to 2^66
2010-01-01	]mh[ Virtek	NF	no factor from 2^64 to 2^65
2009-01-11	Wojciech Florek	NF	no factor from 2^63 to 2^64