2 999 Exponent Status

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

PrimeNet Exponent Status

M_n

Details

Composite, with 5 known prime factors. Cofactor is composite.

Trial Factored to 2⁶⁸

TF target 2⁴⁴

Factored

Factor	Digits	Bits	Date
671777	6	19.4	old
95278231	8	26.5	old
37322291089	11	35.1	old
585634707018333178516529	24	79.0	old
4545709060780082037089231	25	81.9	old

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	640 / 640
35	1000000	1566 / 1566
40	3000000	4588 / 4588
45	11000000	9201 / 9201
50	44000000	16550 / 16550
55	110000000	22593 / 40830

Estimated T-Level: 52.8 ⓘ

TF below 2^170 is very unlikely to find new factors due to ECM effort.

Status	Proof	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	No proof (small exponent)	2017-09-21	Oliver Kruse	C4DCB2326488AA11	5	0	1	3
Verified	No proof (small exponent)	2017-10-02	kkmrkkblmbrbk	C4DCB2326488AA11	5	0	1	3
Verified	No proof (small exponent)	2017-12-07	ATH	C4DCB2326488AA11	5	1822	1	3
Verified	No proof (small exponent)	2020-04-17	Oliver Kruse	C5FCA2DB404B1AEF	5	1765	5	3
Verified	No proof (small exponent)	2024-02-03	Wentao Huang	C5FCA2DB404B1AEF	5	2607	5	3

History

Date	User	Type	Result
2025-04-22	masser	NF-PP1	Start=125/13, B1=3100000000, B2=3096900000000
2024-02-03	Wentao Huang	C-PRP	M2999/671777/95278231/37322291089/585634707018333178516529/4545709060780082037089231 : C5FCA2DB404B1AEF
2022-04-02	mikr	NF-PM1	B1=70000000000, B2=367004699921960100
2021-07-08	ViliamF	NF-PM1	B1=1000000000, B2=191000000000
2020-04-17	Oliver Kruse	C-PRP	M2999/671777/95278231/37322291089/585634707018333178516529/4545709060780082037089231 : C5FCA2DB404B1AEF
2017-12-07	ATH	C-PRP	M2999/671777/95278231/37322291089/585634707018333178516529/4545709060780082037089231 : C4DCB2326488AA11
2017-10-02	kkmrkkblmbrbk	C-PRP	M2999/671777/95278231/37322291089/585634707018333178516529/4545709060780082037089231 : C4DCB2326488AA11
2017-09-21	Oliver Kruse	C-PRP	M2999/known_factors : C4DCB2326488AA11