1 675 951 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
243370586518127	15	47.8	old
76254403723238328097	20	66.0	2019-03-24 18:15:48
430556281303059013787903	24	78.5	2020-01-20 12:09:18

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	108 / 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	B6DA6BDAF6D97587	1	0	1	3
Verified (Factored)	2017-10-18	Oliver Kruse	B6DA6BDAF6D97587	1	999395	1	3
Verified (Factored)	2019-03-25	EthanD	7F2CB62CCED3F97F	2	1114290	5	3
Verified (Factored)	2019-03-26	kkmrkkblmbrbk	7F2CB62CCED3F97F	2	31975	5	3
Verified	2020-01-23	Jinyuan Wang	7F2CB62CCED3F97F	3	458836	5	3
Verified	2020-01-23	Luigi Morelli	7F2CB62CCED3F97F	3	1273256	5	3
Verified	2022-10-06	francijezek	7F2CB62CCED3F97F	3	250294	5	3

History

Date	User	Type	Result
2022-10-07	Matt Beeken	CERT	PRP Certification Proof certified good
2022-10-06	francijezek	C-PRP	M1675951/243370586518127/76254403723238328097/430556281303059013787903 : 7F2CB62CCED3F97F PRP proof power = 6 PRP: Verified Proof certified good
2020-01-23	Luigi Morelli	C-PRP	M1675951/243370586518127/76254403723238328097/430556281303059013787903 : 7F2CB62CCED3F97F PRP: Verified PRP without proof (not generated)
2020-01-23	Jinyuan Wang	C-PRP	M1675951/243370586518127/76254403723238328097/430556281303059013787903 : 7F2CB62CCED3F97F PRP: Verified PRP without proof (not generated)
2020-01-20	TJAOI	F-ECM	Factor: 430556281303059013787903 / (ECM curve 178, B1=50000, B2=5000000)
2019-03-26	kkmrkkblmbrbk	C-PRP	M1675951/243370586518127/76254403723238328097 : 7F2CB62CCED3F97F PRP: Verified PRP without proof (not generated)
2019-03-25	EthanD	C-PRP	M1675951/243370586518127/76254403723238328097 : 7F2CB62CCED3F97F PRP: Verified PRP without proof (not generated)
2019-03-24	Chang Chia-Tche	F-ECM	Factor: 76254403723238328097 / (ECM curve 1, B1=50000, B2=5000000)
2017-10-18	Oliver Kruse	C-PRP	M1675951/243370586518127 : B6DA6BDAF6D97587 PRP: Verified PRP without proof (not generated)
2017-09-30	alpertron	C-PRP	M1675951/243370586518127 : B6DA6BDAF6D97587 PRP: Verified PRP without proof (not generated)
2016-03-17	alpertron	NF-PM1	B1=500000, B2=15000000, E=12