2 519 369 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
75581071	8	26.2	old
398060303	9	28.6	2008-07-14 20:24:33
13060408897	11	33.6	2008-07-14 20:24:33

ECM

Digits	B1	Curves
25	50000	147 / 280

Estimated T-Level: 22.6 ⓘ

TF below 2^70 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)	2017-10-14	Oliver Kruse	6E4D1D8F280BB977	3	2357244	5	3
Verified	PRP without proof (not generated)	2017-11-30	storm5510	6E4D1D8F280BB977	3	1659555	5	3

History

Date	User	Type	Result
2019-07-04	alpertron	NF-PM1	B1=2000000, B2=60000000, E=12
2017-11-30	storm5510	C-PRP	M2519369/75581071/13060408897/398060303 : 6E4D1D8F280BB977
2017-10-14	Oliver Kruse	C-PRP	M2519369/75581071/13060408897/398060303 : 6E4D1D8F280BB977
2008-07-14	George Woltman	F-ECM	Factor: 398060303
2008-07-14	George Woltman	F-ECM	Factor: 13060408897

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