1 924 969 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
47908018444421046306319	23	75.3	2017-12-20 19:49:28

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	Shift
Verified (Factored)		Robert R. Covelli	D2F8B3527EA54A29	0
Verified (Factored)	1998-12-21	Bruce Mitchell	D2F8B3527EA54A29	927093
Verified (Factored)	2015-07-14	MadPoo	D2F8B3527EA54A29	876898

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-12-20	ATH	EB8C0FE10764008B	1	498888	5	3
Verified	2017-12-20	kkmrkkblmbrbk	EB8C0FE10764008B	1	829049	5	3

History

Date	User	Type	Result
2017-12-20	kkmrkkblmbrbk	C-PRP	M1924969/47908018444421046306319 : EB8C0FE10764008B PRP: Verified PRP without proof (not generated)
2017-12-20	ATH	C-PRP	M1924969/47908018444421046306319 : EB8C0FE10764008B PRP: Verified PRP without proof (not generated)
2017-12-20	bam	F-ECM	Factor: 47908018444421046306319 / (ECM curve 3, B1=50000, B2=5000000)
2016-02-23	Mark Rose	NF	no factor from 2^62 to 2^63
2016-02-23	Mark Rose	NF	no factor from 2^61 to 2^62
2016-02-23	Mark Rose	NF	no factor from 2^58 to 2^60
2015-09-03	ramgeis	NF	no factor from 2^65 to 2^66
2015-07-14	MadPoo	C-LL	D2F8B3527EA54A29
2015-05-17	snme2pm1	NF	no factor from 2^64 to 2^65
2015-05-17	snme2pm1	NF	no factor from 2^63 to 2^64
2011-09-29	kurly	NF-PM1	B1=1000000, B2=30000000, E=12
2011-08-27	GrunwalderGIMP	NF	no factor from 2^1 to 2^63
2009-06-05	Architects Cubed	NF	no factor from 2^60 to 2^61