2 470 261 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
193253458553	12	37.5	old
63273364064441	14	45.8	2008-09-30 14:37:04

ECM

Digits	B1	Curves
25	50000	214 / 280

Estimated T-Level: 23.8 ⓘ

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)	2017-10-13	Oliver Kruse	794C826CA4F15D17	2	2352566	5	3
Verified	PRP without proof (not generated)	2017-11-29	storm5510	794C826CA4F15D17	2	2046934	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	M2470261/193253458553/63273364064441 : 794C826CA4F15D17
2017-10-13	Oliver Kruse	C-PRP	M2470261/193253458553/63273364064441 : 794C826CA4F15D17
2008-09-30	markr	F	Factor: 63273364064441

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