6 197 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
297457	6	18.2	old
216017645783881769	18	57.6	old
1878357088117630850099189254529	31	100.6	old

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	640 / 640
35	1000000	1566 / 1566
40	3000000	4588 / 4588
45	11000000	1429 / 9201

Estimated T-Level: 40.8 ⓘ

TF below 2^130 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-21	Oliver Kruse	D59A5034E45AC2C5	3	0	1	3
Verified	2017-10-02	kkmrkkblmbrbk	D59A5034E45AC2C5	3	0	1	3
Verified	2017-12-07	ATH	D59A5034E45AC2C5	3	5254	1	3
Verified	2020-04-17	Oliver Kruse	360ED50C419F27AF	3	558	5	3
Verified	2024-02-03	Wentao Huang	360ED50C419F27AF	3	1368	5	3

History

Date	User	Type	Result
2024-02-03	Wentao Huang	C-PRP	M6197/297457/216017645783881769/1878357088117630850099189254529 : 360ED50C419F27AF PRP: Verified PRP without proof (small exponent)
2023-07-30	-Anonymous-	NF-PM1	B1=40000000000, B2=169617550478676300
2021-07-10	ViliamF	NF-PM1	B1=1000000000, B2=201000000000
2020-04-17	Oliver Kruse	C-PRP	M6197/297457/216017645783881769/1878357088117630850099189254529 : 360ED50C419F27AF PRP: Verified PRP without proof (small exponent)
2017-12-07	ATH	C-PRP	M6197/297457/216017645783881769/1878357088117630850099189254529 : D59A5034E45AC2C5 PRP: Verified PRP without proof (small exponent)
2017-10-02	kkmrkkblmbrbk	C-PRP	M6197/297457/216017645783881769/1878357088117630850099189254529 : D59A5034E45AC2C5 PRP: Verified PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M6197/known_factors : D59A5034E45AC2C5 PRP without proof (not generated)