2 011 Exponent Status

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

PrimeNet Exponent Status

M_n

Details

Composite, with 2 known prime factors. Cofactor is composite.

Trial Factored to 2⁶⁸

TF target 2⁴⁴

Factored

Factor	Digits	Bits	Date
2171881	7	21.1	old
544919289684132720332849364364039531371953	42	138.6	old

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	640 / 640
35	1000000	1566 / 1566
40	3000000	4588 / 4588
45	11000000	9201 / 9201
50	44000000	16550 / 16550
55	110000000	40830 / 40830
60	260000000	64128 / 105362

Estimated T-Level: 58.0 ⓘ

TF below 2^188 is very unlikely to find new factors due to ECM effort.

Status	Proof	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	No proof (small exponent)	2017-09-21	Oliver Kruse	6BE0B69E0CDEEFC0	2	0	1	3
Verified	No proof (small exponent)	2017-10-02	kkmrkkblmbrbk	6BE0B69E0CDEEFC0	2	0	1	3
Verified	No proof (small exponent)	2017-12-07	ATH	6BE0B69E0CDEEFC0	2	32	1	3
Verified	No proof (small exponent)	2020-04-17	Oliver Kruse	FF27858C41A70E25	2	166	5	3
Verified	No proof (small exponent)	2020-08-12	_p95holder_	FF27858C41A70E25	2	171	5	3

History

Date	User	Type	Result
2024-03-27	masser	NF-PM1	B1=180000000000, B2=5765739891942030
2021-08-27	H Michaelson	NF-PP1	Start=2/7, B1=25000000, B2=2500000000
2021-03-28	ViliamF	NF-PM1	B1=1000000000, B2=191000000000
2020-08-12	_p95holder_	C-PRP	M2011/2171881/544919289684132720332849364364039531371953 : FF27858C41A70E25
2020-04-17	Oliver Kruse	C-PRP	M2011/2171881/544919289684132720332849364364039531371953 : FF27858C41A70E25
2017-12-07	ATH	C-PRP	M2011/2171881/544919289684132720332849364364039531371953 : 6BE0B69E0CDEEFC0
2017-10-02	kkmrkkblmbrbk	C-PRP	M2011/2171881/544919289684132720332849364364039531371953 : 6BE0B69E0CDEEFC0
2017-09-21	Oliver Kruse	C-PRP	M2011/known_factors : 6BE0B69E0CDEEFC0
2016-09-07	kkmrkkblmbrbk	NF-PM1	B1=500000000, B2=50000000000, E=12
2009-03-24	Never Odd Or Even	F-ECM	Factor: 544919289684132720332849364364039531371953