4 817 Exponent Status

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

PrimeNet Exponent Status

M_n

Details

Composite, with 1 known prime factor. Cofactor is composite.

Trial Factored to 2⁶⁸

TF target 2⁴⁴

Factored

Factor	Digits	Bits	Date
119616429400858789246117983557623	33	106.6	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	15507 / 40830

Estimated T-Level: 51.9 ⓘ

TF below 2^167 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	24BF859BE0275B13	1	0	1	3
Verified	No proof (small exponent)	2017-10-12	kkmrkkblmbrbk	24BF859BE0275B13	1	4253	1	3
Verified	No proof (small exponent)	2020-04-17	Oliver Kruse	4CE591FDB7F5AC6F	1	563	5	3
Verified	No proof (small exponent)	2024-02-03	Wentao Huang	4CE591FDB7F5AC6F	1	1319	5	3

History

Date	User	Type	Result
2025-05-22	masser	NF-PP1	Start=112/61, B1=2100000000, B2=2097900000000
2024-02-03	Wentao Huang	C-PRP	M4817/119616429400858789246117983557623 : 4CE591FDB7F5AC6F
2023-05-30	-anonymous-	NF-PM1	B1=66000000000, B2=662102605034570700
2021-07-09	ViliamF	NF-PM1	B1=1000000000, B2=201000000000
2020-04-17	Oliver Kruse	C-PRP	M4817/119616429400858789246117983557623 : 4CE591FDB7F5AC6F
2017-10-12	kkmrkkblmbrbk	C-PRP	M4817/119616429400858789246117983557623 : 24BF859BE0275B13
2017-09-21	Oliver Kruse	C-PRP	M4817/119616429400858789246117983557623 : 24BF859BE0275B13
2017-09-21	Oliver Kruse	C-PRP	M4817/119616429400858789246117983557623 : 24BF859BE0275B13
2001-06-17	-anonymous-	NF-PM1	B1=43000000, B2=4290000000
2001-02-11	-anonymous-	NF-PM1	B1=1000000, B2=100000000
2000-08-17	-anonymous-	NF	no factor TF: 1-56
2000-02-16	-anonymous-	NF	no factor TF: 54-55
1999-12-30	-anonymous-	NF	no factor TF: 53-54
1999-09-22	-anonymous-	NF	no factor TF: 52-53