2 533 031 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
141849737	9	27.1	old
131555562218203727	18	56.9	2015-05-06 11:54:34
224148806770156663047337	24	77.6	2018-12-11 05:07:48

ECM

Digits	B1	Curves
25	50000	58 / 280

Estimated T-Level: 21.0 ⓘ

TF below 2^65 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-10-15	kkmrkkblmbrbk	47C560A8690E01C8	2	248120	5	3
Verified (Factored)	2017-11-08	Oliver Kruse	47C560A8690E01C8	2	337752	5	3
Verified	2018-12-14	Oliver Kruse	47C560A8690E01C8	3	725460	5	3

P-1 factors

Date	Factor	B1	B2
2018-12-11	224148806770156663047337	2000000	60000000

History

Date	User	Type	Result
2018-12-14	Oliver Kruse	C-PRP	M2533031/141849737/131555562218203727/224148806770156663047337 : 47C560A8690E01C8 PRP: Verified PRP without proof (not generated)
2018-12-11	alpertron	F-PM1	Factor: 224148806770156663047337 / (P-1, B1=2000000, B2=60000000, E=12)
2017-11-08	Oliver Kruse	C-PRP	M2533031/141849737/131555562218203727 : 47C560A8690E01C8 PRP: Verified PRP without proof (not generated)
2017-10-15	kkmrkkblmbrbk	C-PRP	M2533031/141849737/131555562218203727 : 47C560A8690E01C8 PRP: Verified PRP without proof (not generated)
2015-05-06	TJAOI	F	Factor: 131555562218203727 / TF: 56-57