2 570 921 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 2⁶³

Factored

Factor	Digits	Bits	Date
20567369	8	24.3	old
3116434335327319	16	51.5	2014-03-30 14:30:31

ECM

Digits	B1	Curves
25	50000	120 / 280

Estimated T-Level: 22.1 ⓘ

TF below 2^69 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)	2017-10-15	Oliver Kruse	EA00D5510A41DFCA	2	642578	5	3
Verified	PRP without proof (not generated)	2017-12-01	storm5510	EA00D5510A41DFCA	2	547993	5	3

History

Date	User	Type	Result
2022-09-01	USAFSS	NF-PM1	B1=300000, B2=258641460
2017-12-01	storm5510	C-PRP	M2570921/20567369/3116434335327319 : EA00D5510A41DFCA
2017-10-15	Oliver Kruse	C-PRP	M2570921/20567369/3116434335327319 : EA00D5510A41DFCA
2014-03-30	pdazzl	F	Factor: 3116434335327319 / TF: 48-54

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