1 933 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

Composite, with 2 known prime factors. Cofactor is composite.

Factored

Factor	Digits	Bits	Date
645881023	9	29.3	old
6118054056737236933100274795279001290402841	43	142.1	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	40830 / 40830
60	260000000	105362 / 105362
65	800000000	67886 / 194238

Estimated T-Level: 61.7 ⓘ

TF below 2^200 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	42C7A4F02FED487C	2	0	1	3
Verified	2017-10-02	kkmrkkblmbrbk	42C7A4F02FED487C	2	0	1	3
Verified	2017-12-07	ATH	42C7A4F02FED487C	2	1641	1	3
Verified	2020-04-17	Oliver Kruse	6E0A2EDA4D145A86	2	752	5	3
Verified	2020-08-12	_p95holder_	6E0A2EDA4D145A86	2	1757	5	3

History

Date	User	Type	Result
2023-01-14	mikr	NF-PM1	B1=500000000000, B2=3291057749991451440
2021-07-26	ViliamF	NF-PP1	Start=2/7, B1=1000000000, B2=221000000000
2020-12-23	Oliver Kruse	NF-PM1	B1=2000000000, B2=694546499190430
2020-08-12	_p95holder_	C-PRP	M1933/645881023/6118054056737236933100274795279001290402841 : 6E0A2EDA4D145A86 PRP: Verified PRP without proof (small exponent)
2020-04-17	Oliver Kruse	C-PRP	M1933/645881023/6118054056737236933100274795279001290402841 : 6E0A2EDA4D145A86 PRP: Verified PRP without proof (small exponent)
2017-12-07	ATH	C-PRP	M1933/645881023/6118054056737236933100274795279001290402841 : 42C7A4F02FED487C PRP: Verified PRP without proof (small exponent)
2017-10-02	kkmrkkblmbrbk	C-PRP	M1933/645881023/6118054056737236933100274795279001290402841 : 42C7A4F02FED487C PRP: Verified PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M1933/known_factors : 42C7A4F02FED487C PRP without proof (not generated)
2016-09-07	kkmrkkblmbrbk	NF-PM1	B1=1000000000, B2=100000000000, E=12