2 574 587 Exponent Status

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

PrimeNet Exponent Status

M_n

Details

Composite, with 3 known prime factors. Cofactor is composite.

Trial Factored to 2⁶⁸

TF target 2⁶³

Factored

Factor	Digits	Bits	Date
115840967479	12	36.8	old
1364392082303	13	40.3	2008-07-14 20:25:07
15903438871865327	17	53.8	2014-03-30 14:30:33

ECM

Digits	B1	Curves
25	50000	131 / 280

Estimated T-Level: 22.3 ⓘ

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	FC5703BAF99C592B	3	241769	5	3
Verified	PRP without proof (not generated)	2017-12-01	storm5510	FC5703BAF99C592B	3	709483	5	3

History

Date	User	Type	Result
2022-09-02	USAFSS	NF-PM1	B1=300000, B2=255848670
2017-12-01	storm5510	C-PRP	M2574587/115840967479/1364392082303/15903438871865327 : FC5703BAF99C592B
2017-10-15	Oliver Kruse	C-PRP	M2574587/115840967479/1364392082303/15903438871865327 : FC5703BAF99C592B
2014-03-30	pdazzl	F	Factor: 15903438871865327 / TF: 48-54
2008-07-14	George Woltman	F-ECM	Factor: 1364392082303

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