2 471 389 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
341344348828159	15	48.3	old

ECM

Digits	B1	Curves
25	50000	114 / 280

Estimated T-Level: 22.0 ⓘ

TF below 2^68 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	1DD4DB869D0AEC7E	1	77942	5	3
Verified	PRP without proof (not generated)	2017-11-29	storm5510	1DD4DB869D0AEC7E	1	636273	5	3

History

Date	User	Type	Result
2018-09-28	alpertron	NF-PM1	B1=2000000, B2=60000000, E=12
2017-11-29	storm5510	C-PRP	M2471389/341344348828159 : 1DD4DB869D0AEC7E
2017-10-14	Oliver Kruse	C-PRP	M2471389/341344348828159 : 1DD4DB869D0AEC7E

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