27 152 453 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
214211625581311913643047	24	77.5	2021-01-08 03:02:58

ECM

Digits	B1	Curves
25	50000	7 / 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)	2007-07-04	Mark Ramsay	449DFC6C18DACCCF	15156754
Verified (Factored)	2011-09-20	ANONYMOUS	449DFC6C18DACCCF	23205900

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2021-01-10	mrh	A48D492536B20D44	1	1770529	1	3
Verified	2021-01-23	Jaytholomew	A48D492536B20D44	1	17426310	1	3

P-1 factors

Date	Factor	B1	B2
2021-01-08	214211625581311913643047	1350000	89100000

History

Date	User	Type	Result
2021-05-15	firejuggler	NF-PP1	Start=6/5, B1=500000, B2=23000000
2021-01-23	Jaytholomew	C-PRP	M27152453/214211625581311913643047 : A48D492536B20D44 PRP: Verified PRP without proof (not generated)
2021-01-10	mrh	C-PRP	M27152453/214211625581311913643047 : A48D492536B20D44 PRP: Verified PRP without proof (not generated)
2021-01-08	firejuggler	F-PM1	Factor: 214211625581311913643047 / (P-1, B1=1350000, B2=89100000)
2018-09-11	chuenkit	NF	no factor from 2^69 to 2^70
2018-04-09	VictordeHollander	NF	no factor from 2^68 to 2^69
2013-06-07	David Campeau	NF	no factor from 2^67 to 2^68
2011-09-20	ANONYMOUS	C-LL	449DFC6C18DACCCF