1 813 937 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
302009626879	12	38.1	old
487228844072936403337	21	68.7	2020-06-25 02:22:27

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	107 / 640

Estimated T-Level: 25.8 ⓘ

TF below 2^81 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-10-03	Oliver Kruse	6CA5E080CB580B0F	1	0	1	3
Verified (Factored)	2017-11-05	ATH	6CA5E080CB580B0F	1	18180	1	3
Verified	2020-06-25	M Miller	B9DCA8C5179CE2E8	2	410799	5	3
Verified	2020-06-26	pew	B9DCA8C5179CE2E8	2	1286036	5	3

History

Date	User	Type	Result
2020-06-26	pew	C-PRP	M1813937/302009626879/487228844072936403337 : B9DCA8C5179CE2E8 PRP: Verified PRP without proof (not generated)
2020-06-25	M Miller	C-PRP	M1813937/302009626879/487228844072936403337 : B9DCA8C5179CE2E8 PRP: Verified PRP without proof (not generated)
2020-06-25	nordi	F-ECM	Factor: 487228844072936403337 / (ECM curve 3, B1=50000, B2=5000000, Sigma=8604382689770426)
2017-11-05	ATH	C-PRP	M1813937/302009626879 : 6CA5E080CB580B0F PRP: Verified PRP without proof (not generated)
2017-10-03	Oliver Kruse	C-PRP	M1813937/302009626879 : 6CA5E080CB580B0F PRP: Verified PRP without proof (not generated)
2016-03-16	alpertron	NF-PM1	B1=500000, B2=15000000, E=12