17 288 539 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Status

Details

Composite, with 4 known prime factors. Cofactor is composite.

Factored

Factor	Digits	Bits	Date
24065646289	11	34.5	old
8913189128128889	16	53.0	2014-08-31 10:25:26
32831286670895768137	20	64.8	2018-01-31 15:04:46
23911320553038213746839	23	74.3	2025-10-18 02:47:15

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2024-10-10	k0r3	753DDADAE6231A7D	3	13739797	5	3
Verified	2025-10-18	ViliamF	753DDADAE6231A7D	4	2166306	5	3

P-1 factors

Date	Factor	B1	B2
2025-10-18	23911320553038213746839	2480000	7015932000

History

Date	User	Type	Result
2025-10-18	Fabrice Bellet	CERT	PRP Certification Proof certified good
2025-10-18	ViliamF	C-PRP	M17288539/24065646289/8913189128128889/32831286670895768137/23911320553038213746839 : 753DDADAE6231A7D PRP proof power = 8 PRP: Verified Proof certified good
2025-10-18	ViliamF	F-PM1	Factor: 23911320553038213746839 / (P-1, B1=2480000, B2=7015932000)
2025-08-10	nordi	NF-PM1	B1=500000, B2=254324994
2024-10-10	eb2024	CERT	PRP Certification Proof certified good
2024-10-10	k0r3	C-PRP	M17288539/24065646289/8913189128128889/32831286670895768137 : 753DDADAE6231A7D PRP proof power = 8 PRP: Verified (Factored) Proof certified good
2024-05-21	nordi	NF-PM1	B1=500000
2018-01-31	TJAOI	F	Factor: 32831286670895768137 / TF: 64-65
2014-08-31	TJAOI	F	Factor: 8913189128128889