7 862 641 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
62759875381302576943	20	65.8	2015-06-09 21:18:40

ECM

Digits	B1	Curves
25	50000	3 / 280

Estimated T-Level: 20.1 ⓘ

TF below 2^62 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)	1999-08-31	Thomas Honold	54E0702DC00D4C44	373
Verified (Factored)	2002-06-29	Peter Hoogendijk	54E0702DC00D4C44	522861

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2018-06-04	_p95holder_	34E8A7B2E34EEE92	1	3041727	5	3
Verified	2019-10-29	arnaud	34E8A7B2E34EEE92	1	4347129	5	3

History

Date	User	Type	Result
2019-10-29	arnaud	C-PRP	M7862641/62759875381302576943 : 34E8A7B2E34EEE92 PRP: Verified PRP without proof (not generated)
2018-06-04	_p95holder_	C-PRP	M7862641/62759875381302576943 : 34E8A7B2E34EEE92 PRP: Verified PRP without proof (not generated)
2015-06-09	VictordeHollander	F	Factor: 62759875381302576943 / TF: 65-66
2013-12-16	David Campeau	NF	no factor from 2^64 to 2^65
2013-10-05	Nesowa	NF	no factor from 2^63 to 2^64
2012-09-10	Nesowa	NF-PM1	B1=100000, B2=1900000, E=6