2 362 331 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
4724663	7	22.2	old
20297147953	11	34.2	2008-07-14 20:23:20

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	121 / 640

Estimated T-Level: 25.9 ⓘ

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	E989BBBA7A9943DF	2	779136	5	3
Verified	PRP without proof (not generated)	2017-11-24	storm5510	E989BBBA7A9943DF	2	1791875	5	3

History

Date	User	Type	Result
2018-04-27	alpertron	NF-PM1	B1=2000000, B2=60000000, E=12
2017-11-24	storm5510	C-PRP	M2362331/4724663/20297147953 : E989BBBA7A9943DF
2017-10-12	Oliver Kruse	C-PRP	M2362331/4724663/20297147953 : E989BBBA7A9943DF
2008-07-14	George Woltman	F-ECM	Factor: 20297147953

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