2 652 151 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
5362903928497	13	42.3	old
206537771572455073	18	57.5	2015-06-25 11:43:45

ECM

Digits	B1	Curves
25	50000	200 / 280

Estimated T-Level: 23.6 ⓘ

TF below 2^73 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)	2017-10-18	Oliver Kruse	A45884B5259458D7	2	2405180	5	3
Verified	PRP without proof (not generated)	2017-12-03	storm5510	A45884B5259458D7	2	1813594	5	3

History

Date	User	Type	Result
2019-07-04	alpertron	NF-PM1	B1=2000000, B2=60000000, E=12
2017-12-03	storm5510	C-PRP	M2652151/5362903928497/206537771572455073 : A45884B5259458D7
2017-10-18	Oliver Kruse	C-PRP	M2652151/5362903928497/206537771572455073 : A45884B5259458D7
2015-06-25	TJAOI	F	Factor: 206537771572455073

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