5 984 971 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
2498533603384872403644248087761147526423	40	130.9	2023-01-25 19:59:43

ECM

Digits	B1	Curves
25	50000	9 / 280

Estimated T-Level: 20.2 ⓘ

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

Status	Date	User	Residue	Shift
Verified (Factored)	1999-01-02	Alva Duckwall	67B7A64F079DC880	0
Verified (Factored)	2001-05-20	Aaron B	67B7A64F079DC880	4685371

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2023-01-31	Perig	59C8F96BE5B531E8	1	5904532	5	3

P-1 factors

Date	Factor	B1	B2
2023-01-25	2498533603384872403644248087761147526423	6200000	6490797390

History

Date	User	Type	Result
2023-01-31	LookAS	CERT	PRP Certification Proof certified good
2023-01-31	Perig	C-PRP	M5984971/2498533603384872403644248087761147526423 : 59C8F96BE5B531E8 PRP proof power = 7 PRP: Verified Proof certified good
2023-01-25	Sid & Andy	F-PM1	Factor: 2498533603384872403644248087761147526423 / (P-1, B1=6200000, B2=6490797390)
2022-09-01	Wentao Huang	NF-PM1	B1=720000, B2=284900070
2021-10-11	SRBase	NF	no factor from 2^71 to 2^72
2021-08-23	SRBase	NF	no factor from 2^70 to 2^71
2021-08-18	SRBase	NF	no factor from 2^69 to 2^70
2020-06-05	TJAOI	NF	no factor from 2^68 to 2^69
2020-01-03	Aaron Haviland	NF-PM1	B1=325000, B2=7475000, e=12
2018-04-11	ramgeis	NF	no factor from 2^67 to 2^68
2016-06-18	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-02-23	Mark Rose	NF	no factor from 2^62 to 2^63
2015-09-30	snme2pm1	NF	no factor from 2^65 to 2^66
2014-10-04	monst	NF	no factor from 2^64 to 2^65
2014-10-04	Nesowa	NF	no factor from 2^63 to 2^64
2010-10-06	Squeeky_Squirrel	NF-PM1	B1=70000, B2=1155000, E=6