61 051 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
544074911111772361999810937946732719	36	118.7	2018-01-27 18:57:10

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	640 / 640
35	1000000	1566 / 1566
40	3000000	939 / 4588

Estimated T-Level: 36.0 ⓘ

TF below 2^115 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Unknown	5324	0
Verified (Factored)		Ethan O'Connor	D268F11779035324	0
Verified (Factored)		Brian J. Beesley	D268F11779035324	0
Verified (Factored)	2015-04-11	MadPoo	D268F11779035324	40854

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2018-01-29	AdolfNor	13B5D4302F36D0C7	1	13955	5	3
Verified	2018-01-29	Oliver Kruse	13B5D4302F36D0C7	1	45986	5	3

History

Date	User	Type	Result
2022-11-15	George Woltman	NF-PM1	B1=1000000000, B2=92348999993250
2022-11-03	George Woltman	NF-PM1	B1=1000000000
2021-04-25	ATH	NF-PP1	Start=2/7, B1=10000000, B2=1000000000
2018-01-29	Oliver Kruse	C-PRP	M61051/544074911111772361999810937946732719 : 13B5D4302F36D0C7 PRP: Verified PRP without proof (small exponent)
2018-01-29	AdolfNor	C-PRP	M61051/544074911111772361999810937946732719 : 13B5D4302F36D0C7 PRP: Verified PRP without proof (small exponent)
2018-01-27	arnaud	F-ECM	Factor: 544074911111772361999810937946732719 / (ECM curve 1, B1=3000000, B2=300000000)
2016-05-20	Sid & Andy	NF	no factor from 2^62 to 2^63
2016-02-23	LaurV	NF	no factor from 2^58 to 2^59
2015-04-11	MadPoo	C-LL	D268F11779035324
2011-06-24	Richard B. Woods	NF	no factor from 2^61 to 2^62
2011-06-24	Richard B. Woods	NF	no factor from 2^60 to 2^61
2009-01-12	Sturle Sunde	NF	no factor from 2^59 to 2^60