14 495 291 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
307240129704679	15	48.1	old
240628225574502217	18	57.7	2015-07-14 12:04:00
1668052656217529599	19	60.5	2016-02-15 12:40:20
209591293882765407071	21	67.5	2022-09-22 09:50:52
4414663775285397932801	22	71.9	2023-02-26 02:27:22
2885914374068100408102809	25	81.3	2022-11-22 14:24:30

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2022-12-19	Naegi Makoto	30F2E83EDF696490	5	14012602	5	3
Verified	2023-02-26	Naegi Makoto	30F2E83EDF696490	6	2553337	5	3

P-1 factors

Date	Factor	B1	B2
2022-11-22	2885914374068100408102809	300000	300000
2023-02-26	4414663775285397932801	300000	213802050

History

Date	User	Type	Result
2023-10-18	James Heinrich	F	Factor: 209591293882765407071 / TF: 67-68
2023-02-27	Umbrarian	CERT	PRP Certification Proof certified good
2023-02-26	Naegi Makoto	C-PRP	M14495291/307240129704679/240628225574502217/1668052656217529599/209591293882765407071/4414663775285397932801/2885914374068100408102809 : 30F2E83EDF696490 PRP proof power = 8 PRP: Verified Proof certified good
2023-02-26	nordi	F-PM1	Factor: 4414663775285397932801 / (P-1, B1=300000, B2=213802050)
2023-01-17	LordJulius	NF	no factor from 2^69 to 2^70
2023-01-17	LordJulius	NF	no factor from 2^68 to 2^69
2022-12-19	hardmath	CERT	PRP Certification Proof certified good
2022-12-19	Naegi Makoto	C-PRP	M14495291/307240129704679/240628225574502217/1668052656217529599/209591293882765407071/2885914374068100408102809 : 30F2E83EDF696490 PRP proof power = 8 PRP: Verified (Factored) Proof certified good
2022-11-22	nordi	F-PM1	Factor: 2885914374068100408102809 / (P-1, B1=300000, B2=300000)
2022-09-25	LordJulius	NF	no factor from 2^66 to 2^67
2022-09-25	LordJulius	NF	no factor from 2^65 to 2^66
2022-09-25	LordJulius	NF	no factor from 2^64 to 2^65
2022-09-22	TJAOI	F	Factor: 209591293882765407071 / TF: 67-68
2016-02-15	TJAOI	F	Factor: 1668052656217529599 / TF: 60-61
2015-07-14	TJAOI	F	Factor: 240628225574502217 / TF: 57-58