157 571 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
1260569	7	20.3	old
159563068500796481	18	57.1	2008-08-26 20:12:36
117295126417746149051692856599	30	96.6	2018-05-25 10:10:06

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	640 / 640
35	1000000	172 / 1566

Estimated T-Level: 30.5 ⓘ

TF below 2^96 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-09-22	Oliver Kruse	3453A159B7C31EC0	2	0	1	3
Verified (Factored)	2017-10-11	kkmrkkblmbrbk	3453A159B7C31EC0	2	145099	1	3
Verified	2018-05-26	Gabriel Lignelli	1B4322F9F3E5C8FB	3	71260	5	3
Verified	2018-05-27	Oliver Kruse	1B4322F9F3E5C8FB	3	104641	5	3

History

Date	User	Type	Result
2018-05-27	Oliver Kruse	C-PRP	M157571/1260569/159563068500796481/117295126417746149051692856599 : 1B4322F9F3E5C8FB PRP: Verified PRP without proof (small exponent)
2018-05-26	Gabriel Lignelli	C-PRP	M157571/1260569/159563068500796481/117295126417746149051692856599 : 1B4322F9F3E5C8FB PRP: Verified PRP without proof (small exponent)
2018-05-25	Yxinity	F-ECM	Factor: 117295126417746149051692856599 / (ECM curve 3, B1=250000, B2=25000000)
2017-10-11	kkmrkkblmbrbk	C-PRP	M157571/1260569/159563068500796481 : 3453A159B7C31EC0 PRP: Verified PRP without proof (small exponent)
2017-09-22	Oliver Kruse	C-PRP	M157571/1260569/159563068500796481 : 3453A159B7C31EC0 PRP: Verified PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M157571/1260569/159563068500796481 : 3453A159B7C31EC0 PRP without proof (not generated)
2016-12-24	kkmrkkblmbrbk	NF-PM1	B1=100000000, B2=2000000000, E=12
2008-08-26	-Anonymous-	F-ECM	Factor: 159563068500796481