1 675 769 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
120655369	9	26.8	old
2144984321	10	31.0	2008-07-15 07:45:10
16702916189838257	17	53.9	2014-10-19 12:41:33
2090876525733448933703	22	70.8	2019-03-24 09:57:25
77881179333923777765799193	26	86.0	2019-12-30 12:50:20

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	107 / 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	9B6EA4C975031396	3	0	1	3
Verified (Factored)	2017-10-18	Oliver Kruse	9B6EA4C975031396	3	1075557	1	3
Verified (Factored)	2019-03-24	ATH	A9991C4C590FB368	4	344437	5	3
Verified (Factored)	2019-03-25	marssystems	A9991C4C590FB368	4	66993	5	3
Verified	2019-12-31	Nagasan64	A9991C4C590FB368	5	369720	5	3

History

Date	User	Type	Result
2019-12-31	Nagasan64	C-PRP	M1675769/120655369/2144984321/16702916189838257/2090876525733448933703/77881179333923777765799193 : A9991C4C590FB368 PRP: Verified PRP without proof (not generated)
2019-12-30	TJAOI	F-ECM	Factor: 77881179333923777765799193 / (ECM curve 33, B1=50000, B2=5000000)
2019-03-25	marssystems	C-PRP	M1675769/120655369/2144984321/16702916189838257/2090876525733448933703 : A9991C4C590FB368 PRP: Verified PRP without proof (not generated)
2019-03-24	ATH	C-PRP	M1675769/120655369/2144984321/16702916189838257/2090876525733448933703 : A9991C4C590FB368 PRP: Verified PRP without proof (not generated)
2019-03-24	Chang Chia-Tche	F-ECM	Factor: 2090876525733448933703 / (ECM curve 1, B1=50000, B2=5000000)
2017-10-18	Oliver Kruse	C-PRP	M1675769/120655369/2144984321/16702916189838257 : 9B6EA4C975031396 PRP: Verified PRP without proof (not generated)
2017-09-30	alpertron	C-PRP	M1675769/120655369/2144984321/16702916189838257 : 9B6EA4C975031396 PRP: Verified PRP without proof (not generated)
2016-03-17	alpertron	NF-PM1	B1=500000, B2=15000000, E=12
2014-10-19	TJAOI	F	Factor: 16702916189838257 / TF: 53-54
2008-07-15	J Feitsma	F	Factor: 2144984321