3 863 443 Exponent Status

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

PrimeNet Exponent Status

M_n

Details

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

Trial Factored to 2⁶⁸

TF target 2⁶⁴

Factored

Factor	Digits	Bits	Date
861485973913	12	39.6	old
25251653722567751	17	54.5	2014-11-25 12:43:55

ECM

Digits	B1	Curves
25	50000	3 / 280

Estimated T-Level: 20.1 ⓘ

TF below 2^62 is very unlikely to find new factors due to ECM effort.

Status	Proof	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	PRP without proof (not generated)	2017-09-20	kkmrkkblmbrbk	C33034E3BF9AAFCD	2	0	1	3
Verified	PRP without proof (not generated)	2017-12-23	storm5510	C33034E3BF9AAFCD	2	2596457	1	3

History

Date	User	Type	Result
2022-05-21	Joss	NF-PM1	B1=100000, B2=130364850
2022-03-22	Joss	NF-PM1	B1=100000
2022-03-02	Joss	NF-PM1	B1=90000
2017-12-23	storm5510	C-PRP	M3863443/861485973913/25251653722567751 : C33034E3BF9AAFCD
2017-09-20	kkmrkkblmbrbk	C-PRP	M3863443/25251653722567751/861485973913 : C33034E3BF9AAFCD
2014-11-25	TJAOI	F	Factor: 25251653722567751

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