433 861 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
9538424081033063	16	53.1	old
1534871967168151057	19	60.4	2014-11-14 22:09:26
284828893412952794164121	24	77.9	2018-08-10 11:14:42

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)	2017-09-24	Oliver Kruse	327F2176AC3A89E2	2	0	1	3
Verified (Factored)	2017-09-24	Oliver Kruse	327F2176AC3A89E2	2	0	1	3
Verified (Factored)	2017-11-09	kkmrkkblmbrbk	327F2176AC3A89E2	2	261482	1	3
Verified	2018-08-11	Gabriel Lignelli	39051437A76A2465	3	254009	5	3
Verified	2018-08-12	ANONYMOUS	39051437A76A2465	3	25761	5	3
Verified	2018-08-14	GunnarLu	39051437A76A2465	3	413148	5	3

P-1 factors

Date	Factor	B1	B2
2014-11-14	1534871967168151057	3000000	100000000

History

Date	User	Type	Result
2018-08-14	GunnarLu	C-PRP	M433861/9538424081033063/1534871967168151057/284828893412952794164121 : 39051437A76A2465 PRP: Verified PRP without proof (small exponent)
2018-08-12	ANONYMOUS	C-PRP	M433861/9538424081033063/1534871967168151057/284828893412952794164121 : 39051437A76A2465 PRP: Verified PRP without proof (small exponent)
2018-08-11	Gabriel Lignelli	C-PRP	M433861/9538424081033063/1534871967168151057/284828893412952794164121 : 39051437A76A2465 PRP: Verified PRP without proof (small exponent)
2018-08-10	TJAOI	F-ECM	Factor: 284828893412952794164121 / (ECM curve 15, B1=250000, B2=25000000)
2017-11-09	kkmrkkblmbrbk	C-PRP	M433861/9538424081033063/1534871967168151057 : 327F2176AC3A89E2 PRP: Verified PRP without proof (small exponent)
2017-09-24	Oliver Kruse	C-PRP	M433861/9538424081033063/1534871967168151057 : 327F2176AC3A89E2 PRP: Verified PRP without proof (not generated)
2017-09-24	Oliver Kruse	C-PRP	M433861/9538424081033063/1534871967168151057 : 327F2176AC3A89E2 PRP: Verified PRP without proof (not generated)
2014-11-14	alpertron	F-PM1	Factor: 1534871967168151057 / (P-1, B1=3000000, B2=100000000, E=12)