1 824 467 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

Composite, with 2 known prime factors. Cofactor is composite.

Factored

Factor	Digits	Bits	Date
35578292403551	14	45.0	old
16190280578012903	17	53.8	2014-10-16 11:25:38

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	106 / 640

Estimated T-Level: 25.8 ⓘ

TF below 2^81 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift	Type	Base
Verified (Factored)	2025-09-02	Kriesel	3805400ACE06B33E	0	1	3

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-10-02	alpertron	2CC8AFED83D2C510	2	0	1	3
Verified	2017-10-19	Oliver Kruse	2CC8AFED83D2C510	2	15768	1	3

History

Date	User	Type	Result
2025-09-03	ManuelJC	CERT	PRP Certification CERT proof power = 6 Proof certified good
2025-09-02	Kriesel	C-PRP	3805400ACE06B33E PRP proof power = 6 PRP: Verified (Factored) Proof certified good
2017-10-19	Oliver Kruse	C-PRP	M1824467/35578292403551/16190280578012903 : 2CC8AFED83D2C510 PRP: Verified PRP without proof (not generated)
2017-10-02	alpertron	C-PRP	M1824467/35578292403551/16190280578012903 : 2CC8AFED83D2C510 PRP: Verified PRP without proof (not generated)
2016-03-16	alpertron	NF-PM1	B1=500000, B2=15000000, E=12
2014-10-16	TJAOI	F	Factor: 16190280578012903 / TF: 53-54