2 500 969 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Details

Composite, with 3 known prime factors. Cofactor is composite.

Trial Factored to 2⁶⁸

TF target 2⁶³

Factored

Factor	Digits	Bits	Date
17926945793	11	34.1	old
600232560001	12	39.1	2008-07-14 20:24:24
80749663002754657	17	56.2	2015-03-13 12:11:29

ECM

Digits	B1	Curves
25	50000	138 / 280

Estimated T-Level: 22.5 ⓘ

TF below 2^70 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)	2017-10-14	Oliver Kruse	8B4890666467170A	3	2222817	5	3
Verified	PRP without proof (not generated)	2017-11-30	storm5510	8B4890666467170A	3	1015067	5	3

History

Date	User	Type	Result
2022-08-18	USAFSS	NF-PM1	B1=240000, B2=200595780
2022-03-10	LordJulius	NF	no factor TF: 65-66
2022-03-10	LordJulius	NF	no factor TF: 66-67
2022-03-10	LordJulius	NF	no factor TF: 62-63
2022-03-10	LordJulius	NF	no factor TF: 63-64
2022-03-10	LordJulius	NF	no factor TF: 64-65
2021-12-14	ANONYMOUS	NF	no factor TF: 67-68
2017-11-30	storm5510	C-PRP	M2500969/17926945793/600232560001/80749663002754657 : 8B4890666467170A
2017-10-14	Oliver Kruse	C-PRP	M2500969/17926945793/600232560001/80749663002754657 : 8B4890666467170A
2015-03-13	TJAOI	F	Factor: 80749663002754657
2008-07-14	George Woltman	F-ECM	Factor: 600232560001