23 390 363 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
8360766426394214913567167	25	82.8	2020-11-27 05:59:34

ECM

Digits	B1	Curves
25	50000	15 / 280

Estimated T-Level: 20.3 ⓘ

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

Status	Date	User	Residue	Shift
Verified (Factored)	2004-07-13	Stephen White	9718FC55CFAE9A55	7650440
Verified (Factored)	2010-07-01	William Jelsma	9718FC55CFAE9A55	6840390

P-1 factors

Date	Factor	B1	B2
2020-11-27	8360766426394214913567167	358000	11845000

History

Date	User	Type	Result
2021-05-13	firejuggler	NF-PP1	Start=6/5, B1=500000, B2=23500000
2021-05-06	firejuggler	NF-PP1	Start=2/7, B1=500000, B2=23500000
2020-11-27	firejuggler	F-PM1	Factor: 8360766426394214913567167 / (P-1, B1=358000, B2=11845000, E=12)
2018-08-23	ramgeis	NF	no factor from 2^69 to 2^70
2018-01-03	VictordeHollander	NF	no factor from 2^68 to 2^69
2016-07-30	VictordeHollander	NF	no factor from 2^67 to 2^68
2010-07-01	William Jelsma	C-LL	9718FC55CFAE9A55