1 770 973 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
4586972373679	13	42.1	old
6141657926883715120513	22	72.4	2020-08-13 01:23:12

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)	2017-10-03	Oliver Kruse	0E8BFFEB55A21CD0	1	0	1	3
Verified (Factored)	2017-11-04	kkmrkkblmbrbk	0E8BFFEB55A21CD0	1	1560718	1	3
Verified	2020-08-15	Team_Inspector	2EF7C95E8258AA4D	2	446637	5	3

History

Date	User	Type	Result
2020-08-15	George Woltman	CERT	PRP Certification Proof certified good
2020-08-15	Team_Inspector	C-PRP	M1770973/4586972373679/6141657926883715120513 : 2EF7C95E8258AA4D PRP proof power = 7 PRP: Verified Proof certified good
2020-08-13	Chang Chia-Tche	F-ECM	Factor: 6141657926883715120513 / (ECM curve 3, B1=50000, B2=5000000)
2017-11-04	kkmrkkblmbrbk	C-PRP	M1770973/4586972373679 : 0E8BFFEB55A21CD0 PRP: Verified (Factored) PRP without proof (not generated)
2017-10-03	Oliver Kruse	C-PRP	M1770973/4586972373679 : 0E8BFFEB55A21CD0 PRP: Verified (Factored) PRP without proof (not generated)
2016-03-16	alpertron	NF-PM1	B1=500000, B2=15000000, E=12