2 013 001 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
3655609817	10	31.8	old
4199120087	10	32.0	2008-07-15 07:49:19
72008588682677195212759	23	75.9	2019-05-18 11:13:05

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	115 / 640

Estimated T-Level: 25.9 ⓘ

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)	2017-10-05	Oliver Kruse	8FFB3CF5F470D1D4	2	0	1	3
Verified (Factored)	2017-11-13	Chang Chia-Tche	8FFB3CF5F470D1D4	2	1975002	1	3
Verified	2019-05-21	vnatin	40EE1C161E61C136	3	579936	5	3
Verified	2019-05-21	ATH	40EE1C161E61C136	3	151987	5	3

History

Date	User	Type	Result
2019-05-21	ATH	C-PRP	M2013001/3655609817/4199120087/72008588682677195212759 : 40EE1C161E61C136 PRP: Verified PRP without proof (not generated)
2019-05-21	vnatin	C-PRP	M2013001/3655609817/4199120087/72008588682677195212759 : 40EE1C161E61C136 PRP: Verified PRP without proof (not generated)
2019-05-18	MarkS	F-ECM	Factor: 72008588682677195212759 / (ECM curve 3, B1=50000, B2=5000000)
2017-11-13	Chang Chia-Tche	C-PRP	M2013001/3655609817/4199120087 : 8FFB3CF5F470D1D4 PRP: Verified PRP without proof (not generated)
2017-10-05	Oliver Kruse	C-PRP	M2013001/3655609817/4199120087 : 8FFB3CF5F470D1D4 PRP: Verified PRP without proof (not generated)
2016-03-17	alpertron	NF-PM1	B1=500000, B2=15000000, E=12
2008-07-15	J Feitsma	F	Factor: 4199120087