2 560 543 Exponent Status

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

PrimeNet Exponent Status

M_n

Details

Composite, with 1 known prime factor. Cofactor is composite.

Trial Factored to 2⁶⁸

TF target 2⁶³

Factored

Factor	Digits	Bits	Date
578682719	9	29.1	old

ECM

Digits	B1	Curves
25	50000	216 / 280

Estimated T-Level: 23.9 ⓘ

TF below 2^74 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	BC50766CBFC9AE24	1	339338	5	3
Verified	PRP without proof (not generated)	2017-12-01	storm5510	BC50766CBFC9AE24	1	1060531	5	3

History

Date	User	Type	Result
2022-08-27	USAFSS	NF-PM1	B1=600000, B2=560425320
2017-12-01	storm5510	C-PRP	M2560543/578682719 : BC50766CBFC9AE24
2017-10-15	Oliver Kruse	C-PRP	M2560543/578682719 : BC50766CBFC9AE24

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