2 596 793 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
145420409	9	27.1	old
1261392199751	13	40.2	2008-07-14 20:25:15

ECM

Digits	B1	Curves
25	50000	170 / 280

Estimated T-Level: 23.0 ⓘ

TF below 2^72 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	8489A1C6C1AB9470	2	751976	5	3
Verified	PRP without proof (not generated)	2017-12-02	storm5510	8489A1C6C1AB9470	2	2508103	5	3

History

Date	User	Type	Result
2022-09-25	USAFSS	NF-PM1	B1=300000, B2=313610220
2017-12-02	storm5510	C-PRP	M2596793/145420409/1261392199751 : 8489A1C6C1AB9470
2017-10-15	Oliver Kruse	C-PRP	M2596793/145420409/1261392199751 : 8489A1C6C1AB9470
2008-07-14	George Woltman	F-ECM	Factor: 1261392199751

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