15 144 469 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
19141596703086016027583479	26	84.0	2022-11-05 18:50:43

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)	2003-01-25	Bent Grouleff Christensen	8DDD6C6F863175DC	5103982
Verified (Factored)	2005-11-13	Brian Jue	8DDD6C6F863175DC	14946810

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2023-06-01	Naegi Makoto	4499C00FCAA8FCE4	1	3335520	5	3

P-1 factors

Date	Factor	B1	B2
2023-05-27	19141596703086016027583479	768000	152293050

History

Date	User	Type	Result
2023-06-01	Jason Lynch	CERT	PRP Certification Proof certified good
2023-06-01	Naegi Makoto	C-PRP	M15144469/19141596703086016027583479 : 4499C00FCAA8FCE4 PRP proof power = 8 PRP: Verified Proof certified good
2023-05-27	USAFSS	F-PM1	Factor: 19141596703086016027583479 / (P-1, B1=768000, B2=152293050)
2022-11-05	ATH	F-PP1	Start=2/7, B1=1000000, B2=29000000, Factor: 19141596703086016027583479
2021-10-09	-Anonymous-	NF	no factor from 2^71 to 2^72
2021-09-03	SRBase	NF	no factor from 2^70 to 2^71
2021-06-30	lycorn	NF	no factor from 2^69 to 2^70
2017-12-24	ramgeis	NF	no factor from 2^68 to 2^69
2017-12-24	ramgeis	NF	no factor from 2^67 to 2^68
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