4 903 741 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
226160534921	12	37.7	old
443548238795796600503	21	68.6	2019-07-30 10:09:27

ECM

Digits	B1	Curves
25	50000	2 / 280

Estimated T-Level: 20.0 ⓘ

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	A37C23052A374D6F	1	0	1	3
Verified (Factored)	2018-04-07	Oliver Kruse	A37C23052A374D6F	1	1561840	1	3
Verified	2019-07-30	-Anonymous-	F90005D1BFE8D72E	2	3142752	5	3
Verified	2019-07-30	ATH	F90005D1BFE8D72E	2	169811	5	3

History

Date	User	Type	Result
2022-09-30	USAFSS	NF-PM1	B1=260000, B2=167750730
2019-07-30	ATH	C-PRP	M4903741/226160534921/443548238795796600503 : F90005D1BFE8D72E PRP: Verified PRP without proof (not generated)
2019-07-30	-Anonymous-	C-PRP	M4903741/226160534921/443548238795796600503 : F90005D1BFE8D72E PRP: Verified PRP without proof (not generated)
2019-07-30	MarkS	F-ECM	Factor: 443548238795796600503 / (ECM curve 2, B1=50000, B2=5000000)
2018-04-07	Oliver Kruse	C-PRP	M4903741/226160534921 : A37C23052A374D6F PRP: Verified PRP without proof (not generated)
2017-09-20	kkmrkkblmbrbk	C-PRP	M4903741/226160534921 : A37C23052A374D6F PRP: Verified PRP without proof (not generated)