2 360 539 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Status

Details

Composite, with 5 known prime factors. Cofactor is composite.

Factored

Factor	Digits	Bits	Date
136911263	9	27.0	old
5307341466041	13	42.3	2008-07-14 20:23:19
552399381273433	15	49.0	2014-04-17 11:32:11
13147816252267619863	20	63.5	2017-03-03 12:21:41
3993026381980310602937	22	71.8	2022-10-28 23:29:27

ECM

Digits	B1	Curves
25	50000	153 / 280

Estimated T-Level: 22.7 ⓘ

TF below 2^71 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-10-12	Oliver Kruse	CB5BA81653FA9841	4	1612983	5	3
Verified (Factored)	2017-11-24	ATH	CB5BA81653FA9841	4	653730	5	3
Verified	2022-10-30	_p95holder_	CB5BA81653FA9841	5	1879744	5	3

History

Date	User	Type	Result
2022-10-30	_p95holder_	C-PRP	M2360539/136911263/5307341466041/552399381273433/13147816252267619863/3993026381980310602937 : CB5BA81653FA9841 PRP: Verified PRP without proof (not generated)
2022-10-28	_p95holder_	F-ECM	Factor: 3993026381980310602937 / (ECM curve 4, B1=50000, B2=5000000)
2018-04-27	alpertron	NF-PM1	B1=2000000, B2=60000000, E=12
2017-11-24	ATH	C-PRP	M2360539/136911263/5307341466041/552399381273433/13147816252267619863 : CB5BA81653FA9841 PRP: Verified PRP without proof (not generated)
2017-10-12	Oliver Kruse	C-PRP	M2360539/136911263/5307341466041/552399381273433/13147816252267619863 : CB5BA81653FA9841 PRP: Verified PRP without proof (not generated)
2017-03-03	TJAOI	F	Factor: 13147816252267619863 / TF: 63-64
2014-04-17	TJAOI	F	Factor: 552399381273433
2008-07-14	George Woltman	F-ECM	Factor: 5307341466041