1 336 883 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
2673767	7	21.4	old
316515828068827912769	21	68.1	2018-06-02 23:36:31
35897069151509973116815631	26	84.9	2021-06-26 09:32:31

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	48CA9E0B03D9FB79	1	0	1	3
Verified (Factored)	2017-10-24	kkmrkkblmbrbk	48CA9E0B03D9FB79	1	277214	1	3
Verified (Factored)	2018-06-04	Oliver Kruse	A781DF1552AB56FB	2	563910	5	3
Verified (Factored)	2018-06-05	Battlemaxx	A781DF1552AB56FB	2	674069	5	3
Verified	2021-06-26	RichD0	A781DF1552AB56FB	3	563157	5	3

History

Date	User	Type	Result
2021-06-26	shiroiro	CERT	PRP Certification Proof certified good
2021-06-26	RichD0	C-PRP	M1336883/2673767/316515828068827912769/35897069151509973116815631 : A781DF1552AB56FB PRP proof power = 6 PRP: Verified Proof certified good
2021-06-26	TJAOI	F-ECM	Factor: 35897069151509973116815631 / (ECM curve 19, B1=250000, B2=35000000)
2018-06-05	Battlemaxx	C-PRP	M1336883/2673767/316515828068827912769 : A781DF1552AB56FB PRP: Verified (Factored) PRP without proof (not generated)
2018-06-04	Oliver Kruse	C-PRP	M1336883/2673767/316515828068827912769 : A781DF1552AB56FB PRP: Verified (Factored) PRP without proof (not generated)
2018-06-02	Chang Chia-Tche	F-ECM	Factor: 316515828068827912769 / (ECM curve 2, B1=50000, B2=5000000)
2017-10-24	kkmrkkblmbrbk	C-PRP	M1336883/2673767 : 48CA9E0B03D9FB79 PRP: Verified (Factored) PRP without proof (not generated)
2017-09-30	Oliver Kruse	C-PRP	M1336883/2673767 : 48CA9E0B03D9FB79 PRP: Verified (Factored) PRP without proof (not generated)
2016-03-17	alpertron	NF-PM1	B1=500000, B2=15000000, E=12