1 492 643 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
2985287	7	21.5	old
3501740479	10	31.7	2008-07-15 10:02:20
15416175124159	14	43.8	2008-09-30 13:29:58
107562290573377	15	46.6	2014-02-18 11:24:57

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	107 / 640

Estimated T-Level: 25.8 ⓘ

TF below 2^81 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-10-05	Oliver Kruse	4CAE142D0490F0EB	4	0	1	3
Verified	2017-10-28	kkmrkkblmbrbk	4CAE142D0490F0EB	4	1126316	1	3

History

Date	User	Type	Result
2017-10-28	kkmrkkblmbrbk	C-PRP	M1492643/2985287/3501740479/15416175124159/107562290573377 : 4CAE142D0490F0EB PRP: Verified PRP without proof (not generated)
2017-10-05	Oliver Kruse	C-PRP	M1492643/2985287/3501740479/15416175124159/107562290573377 : 4CAE142D0490F0EB PRP: Verified PRP without proof (not generated)
2017-10-01	Oliver Kruse	C-PRP	M1492643/2985287/3501740479/15416175124159/107562290573377 : 4CAE142D0490F0EB PRP without proof (not generated)
2016-03-17	alpertron	NF-PM1	B1=500000, B2=15000000, E=12
2014-02-18	TJAOI	F	Factor: 107562290573377
2008-09-30	markr	F	Factor: 15416175124159
2008-07-15	J Feitsma	F	Factor: 3501740479