479 639 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
959279	6	19.9	old
1083024863	10	30.0	2008-07-21 09:20:08
60535840823788049	17	55.7	2015-02-12 12:14:48
1904040587567708628855199	25	80.7	2018-06-08 13:18:02

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	200 / 640

Estimated T-Level: 26.6 ⓘ

TF below 2^83 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-09-26	Oliver Kruse	369CE8D2238AB4AF	3	0	1	3
Verified (Factored)	2017-09-27	Oliver Kruse	369CE8D2238AB4AF	3	0	1	3
Verified (Factored)	2017-11-09	kkmrkkblmbrbk	369CE8D2238AB4AF	3	103610	1	3
Verified	2018-06-09	Daniil Tsarkov	65496A404674D77A	4	388308	5	3
Verified	2018-06-14	_p95holder_	65496A404674D77A	4	89465	5	3

History

Date	User	Type	Result
2018-06-14	_p95holder_	C-PRP	M479639/959279/1083024863/60535840823788049/1904040587567708628855199 : 65496A404674D77A PRP: Verified PRP without proof (small exponent)
2018-06-09	Daniil Tsarkov	C-PRP	M479639/959279/1083024863/60535840823788049/1904040587567708628855199 : 65496A404674D77A PRP: Verified PRP without proof (small exponent)
2018-06-08	TJAOI	F-ECM	Factor: 1904040587567708628855199 / (ECM curve 15, B1=250000, B2=25000000)
2017-11-09	kkmrkkblmbrbk	C-PRP	M479639/959279/1083024863/60535840823788049 : 369CE8D2238AB4AF PRP: Verified PRP without proof (small exponent)
2017-09-27	Oliver Kruse	C-PRP	M479639/959279/1083024863/60535840823788049 : 369CE8D2238AB4AF PRP: Verified PRP without proof (not generated)
2017-09-26	Oliver Kruse	C-PRP	M479639/959279/1083024863/60535840823788049 : 369CE8D2238AB4AF PRP: Verified PRP without proof (not generated)
2015-02-12	TJAOI	F	Factor: 60535840823788049 / TF: 55-56
2008-07-21	J Feitsma	F	Factor: 1083024863