1 862 941 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
15466136183	11	33.8	old
21180396504202844818806060961	29	94.1	2020-07-28 05:48:23

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	106 / 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)	2017-10-04	Oliver Kruse	33639E95F29B4858	1	0	1	3
Verified (Factored)	2017-11-07	kkmrkkblmbrbk	33639E95F29B4858	1	339812	1	3
Verified	2020-07-30	atrench	0A48AEAF4E0ABDB8	2	1694442	5	3
Verified	2020-07-30	fre_games	0A48AEAF4E0ABDB8	2	385910	5	3

History

Date	User	Type	Result
2020-07-30	fre_games	C-PRP	M1862941/15466136183/21180396504202844818806060961 : 0A48AEAF4E0ABDB8 PRP: Verified PRP without proof (not generated)
2020-07-30	atrench	C-PRP	M1862941/15466136183/21180396504202844818806060961 : 0A48AEAF4E0ABDB8 PRP: Verified PRP without proof (not generated)
2020-07-28	_p95holder_	F-ECM	Factor: 21180396504202844818806060961 / (ECM curve 2, B1=50000, B2=5000000)
2017-11-07	kkmrkkblmbrbk	C-PRP	M1862941/15466136183 : 33639E95F29B4858 PRP: Verified PRP without proof (not generated)
2017-10-04	Oliver Kruse	C-PRP	M1862941/15466136183 : 33639E95F29B4858 PRP: Verified PRP without proof (not generated)
2016-03-16	alpertron	NF-PM1	B1=500000, B2=15000000, E=12