61 698 319 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 2⁷⁴

P-1

B1 =	585000
B2 =	12138750

Status	Date	User	Residue	Shift
Verified	2013-05-30	kolen	B1A596E547010175	47600538
Verified	2021-06-18	Sergey Nosov	B1A596E547010175	1338374

History

Date	User	Type	Result
2021-06-18	Sergey Nosov	C-LL	B1A596E547010175
2020-06-08	-Anonymous-	NF	no factor from 2^75 to 2^76
2020-05-19	-Anonymous-	NF	no factor from 2^74 to 2^75
2016-02-23	Mark Rose	NF	no factor from 2^62 to 2^63
2016-02-21	AirSquirrels	NF	no factor from 2^73 to 2^74
2013-05-30	kolen	C-LL	B1A596E547010175
2013-05-03	James Heinrich	NF-PM1	B1=585000, B2=12138750, E=12
2013-02-15	Jerry Hallett	NF	no factor from 2^72 to 2^73
2013-02-10	Jerry Hallett	NF	no factor from 2^71 to 2^72
2013-02-10	Jerry Hallett	NF	no factor from 2^70 to 2^71
2011-11-24	-Anonymous-	NF	no factor from 2^69 to 2^70
2009-07-21	Peter Németh	NF	no factor from 2^68 to 2^69
2009-04-12	Sturle Sunde	NF	no factor from 2^67 to 2^68
2009-04-11	-Anonymous-	NF	no factor from 2^66 to 2^67
2009-04-11	tmorrow	NF	no factor from 2^65 to 2^66
2009-04-10	tmorrow	NF	no factor from 2^64 to 2^65
2009-04-09	mersennum	NF	no factor from 2^63 to 2^64