1 297 459 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
6383498281	10	32.6	old
206480715640539265879	21	67.5	2018-06-08 13:19:33

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	105 / 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 (Factored)	2017-09-30	Oliver Kruse	E9FA88BB0B009B9B	1	0	1	3
Verified (Factored)	2017-10-22	kkmrkkblmbrbk	E9FA88BB0B009B9B	1	696551	1	3
Verified	2018-06-10	Daniil Tsarkov	55E877AFC6CC59AD	2	123037	5	3
Verified	2018-06-10	Oliver Kruse	55E877AFC6CC59AD	2	1072968	5	3

History

Date	User	Type	Result
2018-06-10	Oliver Kruse	C-PRP	M1297459/6383498281/206480715640539265879 : 55E877AFC6CC59AD PRP: Verified PRP without proof (not generated)
2018-06-10	Daniil Tsarkov	C-PRP	M1297459/6383498281/206480715640539265879 : 55E877AFC6CC59AD PRP: Verified PRP without proof (not generated)
2018-06-08	TJAOI	F-ECM	Factor: 206480715640539265879 / (ECM curve 2, B1=50000, B2=5000000)
2017-10-22	kkmrkkblmbrbk	C-PRP	M1297459/6383498281 : E9FA88BB0B009B9B PRP: Verified PRP without proof (not generated)
2017-09-30	Oliver Kruse	C-PRP	M1297459/6383498281 : E9FA88BB0B009B9B PRP: Verified PRP without proof (not generated)
2016-03-17	alpertron	NF-PM1	B1=300000, B2=10000000, E=12