5 231 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

Composite, with 6 known prime factors. Cofactor is composite.

Factored

Factor	Digits	Bits	Date
10463	5	13.4	old
41849	5	15.4	old
470791	6	18.8	old
571122128377	12	39.1	old
1226458465358983	16	50.1	old
33678757164828151588255786488657224788532636735567	50	164.5	2020-10-05 20:27:47

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	12100 / 16550

Estimated T-Level: 48.7 ⓘ

TF below 2^157 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-09-21	Oliver Kruse	0702EC63CD793A6D	5	0	1	3
Verified (Factored)	2017-10-02	kkmrkkblmbrbk	0702EC63CD793A6D	5	0	1	3
Verified (Factored)	2017-12-07	ATH	0702EC63CD793A6D	5	2017	1	3
Verified (Factored)	2020-04-17	Oliver Kruse	314A03647C6200F0	5	3900	5	3
Verified	2020-10-05	Kirill Frolov	314A03647C6200F0	6	1367	5	3
Verified (Factored)	2022-05-12	Jorge Coveiro	314A03647C6200F0	1	1463	5	3

History

Date	User	Type	Result
2023-06-27	-Anonymous-	NF-PM1	B1=60000000000, B2=253175458787951700
2022-05-12	Jorge Coveiro	C-PRP	M5231/10463 : 314A03647C6200F0 PRP: Verified (Factored) PRP without proof (small exponent)
2020-10-05	Kirill Frolov	C-PRP	M5231/10463/41849/470791/571122128377/1226458465358983/33678757164828151588255786488657224788532636735567 : 314A03647C6200F0 PRP: Verified (Factored) PRP without proof (small exponent)
2020-10-05	Ryan Propper	F-ECM	Factor: 33678757164828151588255786488657224788532636735567 / (ECM curve 1, B1=110000000, B2=900514153782, Sigma=9125701901076668659)
2020-04-17	Oliver Kruse	C-PRP	M5231/10463/41849/470791/571122128377/1226458465358983 : 314A03647C6200F0 PRP: Verified (Factored) PRP without proof (small exponent)
2019-01-05	takahashi	NF-PM1	B1=1000000000, B2=10000000000, E=12
2017-12-07	ATH	C-PRP	M5231/10463/41849/470791/571122128377/1226458465358983 : 0702EC63CD793A6D PRP: Verified (Factored) PRP without proof (small exponent)
2017-10-02	kkmrkkblmbrbk	C-PRP	M5231/10463/41849/470791/571122128377/1226458465358983 : 0702EC63CD793A6D PRP: Verified (Factored) PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M5231/known_factors : 0702EC63CD793A6D PRP without proof (not generated)