355 513 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
65853246992326383022933138545001	32	105.7	2019-03-25 09:02:26

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	419 / 640

Estimated T-Level: 28.3 ⓘ

TF below 2^89 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		David Slowinski	2EB7	0
Verified (Factored)		Ken Kriesel	B34A8DA45972EEB7	0
Verified (Factored)		Brian J. Beesley	B34A8DA45972EEB7	0
Verified (Factored)		Eivind Triel	B34A8DA45972EEB7	314324
Verified (Factored)	2016-06-01	MadPoo	B34A8DA45972EEB7	4718

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2019-03-26	trebor	47BE951A73A1195C	1	114098	5	3
Verified	2019-03-26	ANONYMOUS	47BE951A73A1195C	1	138797	5	3
Verified	2019-03-27	kkmrkkblmbrbk	47BE951A73A1195C	1	14459	5	3

History

Date	User	Type	Result
2019-03-27	kkmrkkblmbrbk	C-PRP	M355513/65853246992326383022933138545001 : 47BE951A73A1195C PRP: Verified PRP without proof (small exponent)
2019-03-26	ANONYMOUS	C-PRP	M355513/65853246992326383022933138545001 : 47BE951A73A1195C PRP: Verified PRP without proof (small exponent)
2019-03-26	trebor	C-PRP	M355513/65853246992326383022933138545001 : 47BE951A73A1195C PRP: Verified PRP without proof (small exponent)
2019-03-25	alex	F-ECM	Factor: 65853246992326383022933138545001 / (ECM curve 169, B1=250000, B2=25000000, Sigma=5840655326735565)
2018-02-22	Gordon Spence	NF	no factor from 2^64 to 2^65
2018-02-21	BloodERazor	NF	no factor from 2^64 to 2^65
2016-11-17	mikr	NF-PM1	B1=60000000, B2=3000000000, E=12
2016-06-01	MadPoo	C-LL	B34A8DA45972EEB7
2015-12-20	Gordon Spence	NF	no factor from 2^63 to 2^64
2015-12-20	Gordon Spence	NF	no factor from 2^62 to 2^63
2015-07-26	NR	NF	no factor from 2^61 to 2^62
2013-05-21	lycorn	NF	no factor from 2^60 to 2^61
2012-02-21	alpertron	NF-PM1	B1=10000000, B2=200000000, E=12
2011-08-09	Joss	NF-PM1	B1=1269962
2009-01-27	Sturle Sunde	NF	no factor from 2^59 to 2^60
2008-12-30	Sturle Sunde	NF	no factor from 2^58 to 2^59