1 130 651 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
89983757082285936169	20	66.3	2009-09-07 14:15:39
2128830964590704309284121	25	80.8	2020-08-07 11:06:08

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)		Gerardo Cisneros	147F	0
Verified (Factored)		John R Pierce	3E9F00A097A1147F	0
Verified (Factored)	2002-06-15	S57483	3E9F00A097A1147F	681485

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-09-29	Oliver Kruse	1F03B6820C05CE6D	1	0	1	3
Verified (Factored)	2017-10-16	Oliver Kruse	1F03B6820C05CE6D	1	748595	1	3
Verified (Factored)	2018-01-03	ATH	1F03B6820C05CE6D	1	1127082	1	3
Verified	2020-08-07	ATH	862114715E75058D	2	175041	5	3

History

Date	User	Type	Result
2022-03-07	LordJulius	NF	no factor from 2^57 to 2^60
2020-08-07	ATH	CERT	PRP Certification Proof certified good
2020-08-07	ATH	C-PRP	M1130651/89983757082285936169/2128830964590704309284121 : 862114715E75058D PRP proof power = 6 PRP: Verified Proof certified good
2020-08-07	TJAOI	F-ECM	Factor: 2128830964590704309284121 / (ECM curve 41, B1=250000, B2=25000000)
2018-01-03	ATH	C-PRP	M1130651/89983757082285936169 : 1F03B6820C05CE6D PRP: Verified (Factored) PRP without proof (not generated)
2017-10-16	Oliver Kruse	C-PRP	M1130651/89983757082285936169 : 1F03B6820C05CE6D PRP: Verified (Factored) PRP without proof (not generated)
2017-09-29	Oliver Kruse	C-PRP	M1130651/89983757082285936169 : 1F03B6820C05CE6D PRP: Verified (Factored) PRP without proof (not generated)
2016-03-17	alpertron	NF-PM1	B1=300000, B2=10000000, E=12
2009-09-07	SubPrime	F-ECM	Factor: 89983757082285936169
2009-02-14	Sturle Sunde	NF	no factor from 2^60 to 2^61