2 060 407 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

Composite, with 3 known prime factors. Cofactor is composite.

Factored

Factor	Digits	Bits	Date
32966513	8	25.0	old
98725555232921	14	46.5	2008-08-26 20:20:36
1765633014878250480903641	25	80.5	2021-10-30 19:54:53

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	195 / 640

Estimated T-Level: 26.5 ⓘ

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)	2017-10-06	Oliver Kruse	CB6652CAA8148696	2	0	1	3
Verified (Factored)	2017-11-15	kkmrkkblmbrbk	CB6652CAA8148696	2	998167	1	3
Verified	2021-11-02	_p95holder_	17C11302D2E8C98D	3	1852200	5	3
Verified	2021-11-11	Nesowa	17C11302D2E8C98D	3	308076	5	3

History

Date	User	Type	Result
2021-11-11	Nesowa	C-PRP	M2060407/32966513/98725555232921/1765633014878250480903641 : 17C11302D2E8C98D PRP: Verified PRP without proof (not generated)
2021-11-02	_p95holder_	C-PRP	M2060407/32966513/98725555232921/1765633014878250480903641 : 17C11302D2E8C98D PRP: Verified PRP without proof (not generated)
2021-10-30	_p95holder_	F-ECM	Factor: 1765633014878250480903641 / (ECM curve 3, B1=50000, B2=5000000)
2017-11-15	kkmrkkblmbrbk	C-PRP	M2060407/32966513/98725555232921 : CB6652CAA8148696 PRP: Verified PRP without proof (not generated)
2017-10-06	Oliver Kruse	C-PRP	M2060407/32966513/98725555232921 : CB6652CAA8148696 PRP: Verified PRP without proof (not generated)
2016-03-16	alpertron	NF-PM1	B1=500000, B2=15000000, E=12
2008-08-26	-Anonymous-	F	Factor: 98725555232921