1 914 487 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
30631793	8	24.9	old
306200876309467571183	21	68.1	2021-01-19 13:24:47
73002355438313096185367	23	76.0	2022-01-18 14:10:26

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	106 / 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)	2017-09-30	alpertron	5554AF30DD2B34C2	1	0	1	3
Verified (Factored)	2017-10-20	Oliver Kruse	5554AF30DD2B34C2	1	452949	1	3
Verified (Factored)	2021-01-24	roemer2201	FE4C3F64AE24C5BE	2	154146	5	3
Verified (Factored)	2021-01-24	Richard Thomas	FE4C3F64AE24C5BE	2	507543	5	3
Verified	2022-01-20	JackBlock	FE4C3F64AE24C5BE	3	1563909	5	3

History

Date	User	Type	Result
2022-01-20	MajimaPoro	CERT	PRP Certification Proof certified good
2022-01-20	JackBlock	C-PRP	M1914487/30631793/306200876309467571183/73002355438313096185367 : FE4C3F64AE24C5BE PRP proof power = 7 PRP: Verified Proof certified good
2022-01-18	TJAOI	F-ECM	Factor: 73002355438313096185367 / (ECM curve 147, B1=50000, B2=8000000)
2021-01-24	curtisc	CERT	PRP Certification Proof certified good
2021-01-24	Richard Thomas	C-PRP	M1914487/30631793/306200876309467571183 : FE4C3F64AE24C5BE PRP proof power = 7 PRP: Verified (Factored) Proof certified good
2021-01-24	roemer2201	C-PRP	M1914487/30631793/306200876309467571183 : FE4C3F64AE24C5BE PRP: Verified (Factored) PRP without proof (not generated)
2021-01-19	seatsea	F-ECM	Factor: 306200876309467571183 / (ECM curve 3, B1=50000, B2=4900000, Sigma=3498542104869411)
2017-10-20	Oliver Kruse	C-PRP	M1914487/30631793 : 5554AF30DD2B34C2 PRP: Verified (Factored) PRP without proof (not generated)
2017-09-30	alpertron	C-PRP	M1914487/30631793 : 5554AF30DD2B34C2 PRP: Verified (Factored) PRP without proof (not generated)
2016-03-16	alpertron	NF-PM1	B1=500000, B2=15000000, E=12