15 197 759 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
244723858827121565025097	24	77.7	2023-04-21 23:49:52

ECM

Digits	B1	Curves
25	50000	14 / 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)	2002-07-06	John M. Drescher	C7304663D9B651BE	14212940
Verified (Factored)	2003-06-01	S108289	C7304663D9B651BE	14212940
Verified (Factored)	2003-10-31	Rick Pali	C7304663D9B651BE	12621028

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2023-06-28	XZT	3E5F4D5048B99001	1	604135	5	3

History

Date	User	Type	Result
2023-11-05	nordi	NF-PM1	B1=480000, B2=461959806
2023-10-23	nordi	NF-PM1	B1=480000
2023-06-28	dburke	CERT	PRP Certification Proof certified good
2023-06-28	XZT	C-PRP	M15197759/244723858827121565025097 : 3E5F4D5048B99001 PRP proof power = 8 PRP: Verified Proof certified good
2023-04-21	ATH	F-PP1	Start=2/7, B1=1000000, B2=29000000, Factor: 244723858827121565025097
2021-10-15	-Anonymous-	NF	no factor from 2^71 to 2^72
2021-09-06	SRBase	NF	no factor from 2^70 to 2^71
2021-07-06	lycorn	NF	no factor from 2^69 to 2^70
2017-10-11	ramgeis	NF	no factor from 2^68 to 2^69
2016-10-31	mikr	NF	no factor from 2^67 to 2^68
2016-09-06	Tha	NF-PM1	B1=300000, B2=6000000, E=12
2014-05-14	Nesowa	NF	no factor from 2^66 to 2^67
2014-05-14	Nesowa	NF	no factor from 2^65 to 2^66