9 833 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

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

Factored

Factor	Digits	Bits	Date
4562513	7	22.1	old
1895968774361	13	40.8	old
1993615400527	13	40.9	old
489061585821401691783649055431739696807	39	128.5	2018-06-20 10:51:11

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	6828 / 16550

Estimated T-Level: 47.1 ⓘ

TF below 2^151 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	F718DBB80372D00C	3	0	1	3
Verified (Factored)	2017-10-12	kkmrkkblmbrbk	F718DBB80372D00C	3	1144	1	3
Verified	2018-06-21	Chang Chia-Tche	CB974771EB60A379	4	4629	5	3
Verified	2018-06-21	chuenkit	CB974771EB60A379	4	6602	5	3
Verified	2018-06-21	francijezek	CB974771EB60A379	4	4173	5	3
Verified	2018-06-22	Martin Russell	CB974771EB60A379	4	820	5	3

History

Date	User	Type	Result
2023-06-14	JacobZ	NF-PM1	B1=58000000000, B2=241250667952694400
2022-02-05	Joss	NF-PM1	B1=1000000, B2=6010952007060
2018-06-22	Martin Russell	C-PRP	M9833/4562513/1895968774361/1993615400527/489061585821401691783649055431739696807 : CB974771EB60A379 PRP: Verified PRP without proof (small exponent)
2018-06-21	francijezek	C-PRP	M9833/4562513/1895968774361/1993615400527/489061585821401691783649055431739696807 : CB974771EB60A379 PRP: Verified PRP without proof (small exponent)
2018-06-21	chuenkit	C-PRP	M9833/4562513/1895968774361/1993615400527/489061585821401691783649055431739696807 : CB974771EB60A379 PRP: Verified PRP without proof (small exponent)
2018-06-21	Chang Chia-Tche	C-PRP	M9833/4562513/1895968774361/1993615400527/489061585821401691783649055431739696807 : CB974771EB60A379 PRP: Verified PRP without proof (small exponent)
2018-06-20	Hexaflexagon	F-ECM	Factor: 489061585821401691783649055431739696807 / (ECM curve 932, B1=3000000, B2=300000000)
2017-10-12	kkmrkkblmbrbk	C-PRP	M9833/4562513/1895968774361/1993615400527 : F718DBB80372D00C PRP: Verified PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M9833/4562513/1895968774361/1993615400527 : F718DBB80372D00C PRP: Verified PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M9833/4562513/1895968774361/1993615400527 : F718DBB80372D00C PRP without proof (not generated)