1 508 413 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
1865296525814159	16	50.7	old
9156171398089596824833	22	73.0	2019-05-17 12:26:01

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)	2017-10-01	Oliver Kruse	7385B86A6225A4CD	1	0	1	3
Verified (Factored)	2017-10-29	kkmrkkblmbrbk	7385B86A6225A4CD	1	534156	1	3
Verified	2019-05-17	ATH	636B90FA8E788E6E	2	988889	5	3
Verified	2019-05-23	kracker	636B90FA8E788E6E	2	868025	5	3

History

Date	User	Type	Result
2019-05-23	kracker	C-PRP	M1508413/1865296525814159/9156171398089596824833 : 636B90FA8E788E6E PRP: Verified PRP without proof (not generated)
2019-05-17	ATH	C-PRP	M1508413/1865296525814159/9156171398089596824833 : 636B90FA8E788E6E PRP: Verified PRP without proof (not generated)
2019-05-17	TJAOI	F-ECM	Factor: 9156171398089596824833 / (ECM curve 147, B1=50000, B2=5000000)
2017-10-29	kkmrkkblmbrbk	C-PRP	M1508413/1865296525814159 : 7385B86A6225A4CD PRP: Verified PRP without proof (not generated)
2017-10-01	Oliver Kruse	C-PRP	M1508413/1865296525814159 : 7385B86A6225A4CD PRP: Verified PRP without proof (not generated)
2016-03-17	alpertron	NF-PM1	B1=500000, B2=15000000, E=12