2 352 989 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 2⁶²

Factored

Factor	Digits	Bits	Date
26445106897639	14	44.6	old
62976451735073	14	45.8	2014-01-30 08:43:32

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	133 / 640

Estimated T-Level: 26.0 ⓘ

TF below 2^81 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)	2017-10-12	Oliver Kruse	377EB67B05B3E286	2	0	1	3
Verified	PRP without proof (not generated)	2017-11-24	storm5510	377EB67B05B3E286	2	2005455	1	3

History

Date	User	Type	Result
2018-04-27	alpertron	NF-PM1	B1=2000000, B2=60000000, E=12
2017-11-24	storm5510	C-PRP	M2352989/26445106897639/62976451735073 : 377EB67B05B3E286
2017-10-12	Oliver Kruse	C-PRP	M2352989/26445106897639/62976451735073 : 377EB67B05B3E286
2014-01-30	TJAOI	F	Factor: 62976451735073

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