1 317 761 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
102785359	9	26.6	old
77828671076610685986823	23	76.0	2018-06-08 13:19:53

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	4F631804769F8E85	1	0	1	3
Verified (Factored)	2017-10-23	kkmrkkblmbrbk	4F631804769F8E85	1	929653	1	3
Verified	2018-06-10	Daniil Tsarkov	71DEC9F2F243E568	2	416349	5	3
Verified	2018-06-15	Gabriel Lignelli	71DEC9F2F243E568	2	803097	5	3

History

Date	User	Type	Result
2018-06-15	Gabriel Lignelli	C-PRP	M1317761/102785359/77828671076610685986823 : 71DEC9F2F243E568 PRP: Verified PRP without proof (not generated)
2018-06-10	Daniil Tsarkov	C-PRP	M1317761/102785359/77828671076610685986823 : 71DEC9F2F243E568 PRP: Verified PRP without proof (not generated)
2018-06-08	TJAOI	F-ECM	Factor: 77828671076610685986823 / (ECM curve 110, B1=50000, B2=5000000)
2017-10-23	kkmrkkblmbrbk	C-PRP	M1317761/102785359 : 4F631804769F8E85 PRP: Verified PRP without proof (not generated)
2017-09-30	Oliver Kruse	C-PRP	M1317761/102785359 : 4F631804769F8E85 PRP: Verified PRP without proof (not generated)
2016-03-17	alpertron	NF-PM1	B1=500000, B2=15000000, E=12