4 209 229 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
505107481	9	28.9	old
33691355427704601079	20	64.9	2018-02-14 13:09:07

ECM

Digits	B1	Curves
25	50000	3 / 280

Estimated T-Level: 20.1 ⓘ

TF below 2^62 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-09-20	kkmrkkblmbrbk	FB8109836FC515A4	1	0	1	3
Verified	2018-02-16	Oliver Kruse	9498D11BAFCFC984	2	3601635	5	3
Verified	2018-02-17	kkmrkkblmbrbk	9498D11BAFCFC984	2	892100	5	3
Verified	2018-02-17	AdolfNor	9498D11BAFCFC984	2	971430	5	3

History

Date	User	Type	Result
2022-09-30	USAFSS	NF-PM1	B1=200000, B2=135233670
2018-02-17	AdolfNor	C-PRP	M4209229/505107481/33691355427704601079 : 9498D11BAFCFC984 PRP: Verified PRP without proof (not generated)
2018-02-17	kkmrkkblmbrbk	C-PRP	M4209229/505107481/33691355427704601079 : 9498D11BAFCFC984 PRP: Verified PRP without proof (not generated)
2018-02-16	Oliver Kruse	C-PRP	M4209229/505107481/33691355427704601079 : 9498D11BAFCFC984 PRP: Verified PRP without proof (not generated)
2018-02-14	TJAOI	F	Factor: 33691355427704601079 / TF: 64-65
2017-09-20	kkmrkkblmbrbk	C-PRP	M4209229/505107481 : FB8109836FC515A4 PRP: Verified PRP without proof (not generated)