1 157 641 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
3702615791828197967	19	61.7	2011-05-09 14:45:37
61309700244761462761	20	65.7	2017-08-11 11:15:29
168838931354964897746233	24	77.2	2018-05-25 15:38:39
283749885019731226422032449	27	87.9	2018-05-25 15:38:39

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	100 / 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	Shift
Verified (Factored)		David Tegerdine	0D97DD8E07E832C7	0
Verified (Factored)		Simon Burge	0D97DD8E07E832C7	0
Verified (Factored)		Ricardo Montiel	0D97DD8E07E832C7	0

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-10-05	Oliver Kruse	C94FF8BD07BFAE2F	2	0	1	3
Verified (Factored)	2017-10-17	Oliver Kruse	C94FF8BD07BFAE2F	2	1134155	1	3
Verified (Factored)	2018-01-03	ATH	C94FF8BD07BFAE2F	2	778207	1	3
Verified	2018-05-25	ATH	19E087DD82845B7F	4	511917	5	3
Verified	2018-05-26	Gabriel Lignelli	19E087DD82845B7F	4	557283	5	3

History

Date	User	Type	Result
2022-04-12	LordJulius	NF	no factor from 2^63 to 2^64
2022-04-12	LordJulius	NF	no factor from 2^62 to 2^63
2022-04-12	LordJulius	NF	no factor from 2^1 to 2^61
2022-03-07	LordJulius	NF	no factor from 2^58 to 2^60
2018-05-26	Gabriel Lignelli	C-PRP	M1157641/3702615791828197967/61309700244761462761/283749885019731226422032449/168838931354964897746233 : 19E087DD82845B7F PRP: Verified PRP without proof (not generated)
2018-05-25	ATH	C-PRP	M1157641/3702615791828197967/61309700244761462761/283749885019731226422032449/168838931354964897746233 : 19E087DD82845B7F PRP: Verified PRP without proof (not generated)
2018-05-25	TJAOI	F-ECM	Factor: 168838931354964897746233 / (ECM curve 43, B1=50000, B2=5000000)
2018-05-25	TJAOI	F-ECM	Factor: 283749885019731226422032449 / (ECM curve 55, B1=50000, B2=5000000)
2018-01-03	ATH	C-PRP	M1157641/3702615791828197967/61309700244761462761 : C94FF8BD07BFAE2F PRP: Verified PRP without proof (not generated)
2017-10-17	Oliver Kruse	C-PRP	M1157641/3702615791828197967/61309700244761462761 : C94FF8BD07BFAE2F PRP: Verified PRP without proof (not generated)
2017-10-05	Oliver Kruse	C-PRP	M1157641/3702615791828197967/61309700244761462761 : C94FF8BD07BFAE2F PRP: Verified PRP without proof (not generated)
2017-09-29	Oliver Kruse	C-PRP	M1157641/3702615791828197967/61309700244761462761 : C94FF8BD07BFAE2F PRP without proof (not generated)
2017-08-11	TJAOI	F-ECM	Factor: 61309700244761462761 / (ECM curve 11, B1=50000, B2=5000000)
2016-03-17	alpertron	NF-PM1	B1=300000, B2=10000000, E=12
2011-05-09	Xyzzy	F-ECM	Factor: 3702615791828197967
2009-02-15	Sturle Sunde	NF	no factor from 2^60 to 2^61