1 417 901 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
144625903	9	27.1	old
175021959398690801081	21	67.2	2018-09-17 18:27:00
61558160654960298967129	23	75.7	2019-01-25 12:26:34

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	105 / 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	Oliver Kruse	7F45A092CFB5A07B	1	0	1	3
Verified (Factored)	2017-10-26	kkmrkkblmbrbk	7F45A092CFB5A07B	1	886588	1	3
Verified (Factored)	2018-09-20	Justine V.	7363DDAFD9833650	2	1342586	5	3
Verified (Factored)	2018-09-24	Oliver Kruse	7363DDAFD9833650	2	383863	5	3
Verified	2019-01-25	ATH	7363DDAFD9833650	3	1263664	5	3

History

Date	User	Type	Result
2021-07-01	Dylan Delgado	NF-PM1	B1=1500000, B2=181500000
2019-01-25	ATH	C-PRP	M1417901/144625903/175021959398690801081/61558160654960298967129 : 7363DDAFD9833650 PRP: Verified PRP without proof (not generated)
2019-01-25	TJAOI	F-ECM	Factor: 61558160654960298967129 / (ECM curve 59, B1=50000, B2=5000000)
2018-09-24	Oliver Kruse	C-PRP	M1417901/144625903/175021959398690801081 : 7363DDAFD9833650 PRP: Verified PRP without proof (not generated)
2018-09-20	Justine V.	C-PRP	M1417901/144625903/175021959398690801081 : 7363DDAFD9833650 PRP: Verified PRP without proof (not generated)
2018-09-17	Chang Chia-Tche	F-ECM	Factor: 175021959398690801081 / (ECM curve 1, B1=50000, B2=5000000)
2017-10-26	kkmrkkblmbrbk	C-PRP	M1417901/144625903 : 7F45A092CFB5A07B PRP: Verified PRP without proof (not generated)
2017-09-30	Oliver Kruse	C-PRP	M1417901/144625903 : 7F45A092CFB5A07B PRP: Verified PRP without proof (not generated)
2016-03-17	alpertron	NF-PM1	B1=500000, B2=15000000, E=12