7 717 Exponent Status

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

PrimeNet Exponent Status

M_n

Details

Composite, with 4 known prime factors. Cofactor is composite.

Trial Factored to 2⁶⁸

TF target 2⁴⁴

Factored

Factor	Digits	Bits	Date
19446841	8	24.2	old
13968927551	11	33.7	old
57756173327	11	35.7	old
3171474427519	13	41.5	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	13252 / 16550

Estimated T-Level: 49.0 ⓘ

TF below 2^158 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	483F97CB9C89F34F	4	0	1	3
Verified	No proof (small exponent)	2017-10-02	kkmrkkblmbrbk	483F97CB9C89F34F	4	0	1	3
Verified	No proof (small exponent)	2017-12-07	ATH	483F97CB9C89F34F	4	4116	1	3
Verified	No proof (small exponent)	2020-04-17	Oliver Kruse	E30BAD2EC3D85D28	4	3214	5	3
Verified	No proof (small exponent)	2024-02-03	Wentao Huang	E30BAD2EC3D85D28	4	6266	5	3

History

Date	User	Type	Result
2025-04-13	masser	NF-PP1	Start=152/41, B1=830000000, B2=829170000000
2025-03-31	masser	NF-PP1	Start=6/5, B1=830000000, B2=829170000000
2025-03-20	masser	NF-PP1	Start=2/7, B1=830000000, B2=829170000000
2024-12-10	yuriy_5-1	NF-PM1	B1=24000000000, B2=93848103835646160
2024-02-03	Wentao Huang	C-PRP	M7717/19446841/13968927551/57756173327/3171474427519 : E30BAD2EC3D85D28
2021-07-08	ViliamF	NF-PM1	B1=1000000000, B2=201000000000
2020-04-17	Oliver Kruse	C-PRP	M7717/19446841/13968927551/57756173327/3171474427519 : E30BAD2EC3D85D28
2017-12-07	ATH	C-PRP	M7717/19446841/13968927551/57756173327/3171474427519 : 483F97CB9C89F34F
2017-10-02	kkmrkkblmbrbk	C-PRP	M7717/19446841/13968927551/57756173327/3171474427519 : 483F97CB9C89F34F
2017-09-21	Oliver Kruse	C-PRP	M7717/known_factors : 483F97CB9C89F34F