2 443 901 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
430126577	9	28.7	old
542546023	9	29.0	2008-07-14 20:23:56

ECM

Digits	B1	Curves
25	50000	261 / 280

Estimated T-Level: 24.7 ⓘ

TF below 2^77 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	DC34EE8882BC79B7	2	92481	5	3
Verified	PRP without proof (not generated)	2017-11-28	storm5510	DC34EE8882BC79B7	2	59745	5	3

History

Date	User	Type	Result
2018-09-28	alpertron	NF-PM1	B1=2000000, B2=60000000, E=12
2017-11-28	storm5510	C-PRP	M2443901/430126577/542546023 : DC34EE8882BC79B7
2017-10-13	Oliver Kruse	C-PRP	M2443901/430126577/542546023 : DC34EE8882BC79B7
2008-07-14	George Woltman	F-ECM	Factor: 542546023

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