5 483 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

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

Factored

Factor	Digits	Bits	Date
888247	6	19.8	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	11110 / 16550

Estimated T-Level: 48.4 ⓘ

TF below 2^156 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	A5FEE66E1A6665C0	1	0	1	3
Verified	2017-10-12	kkmrkkblmbrbk	A5FEE66E1A6665C0	1	167	1	3
Verified	2020-04-17	Oliver Kruse	8618D22E92FDFBD2	1	5440	5	3
Verified	2024-02-03	Wentao Huang	8618D22E92FDFBD2	1	2397	5	3

History

Date	User	Type	Result
2024-06-25	mikr	NF-PM1	B1=500000000000, B2=1177314837267769200
2024-02-03	Wentao Huang	C-PRP	M5483/888247 : 8618D22E92FDFBD2 PRP: Verified PRP without proof (small exponent)
2023-07-11	-Anonymous-	NF-PM1	B1=46000000000, B2=193133522175293700
2022-01-24	Ethan O'Connor	NF-PM1	B1=1300000000
2020-04-17	Oliver Kruse	C-PRP	M5483/888247 : 8618D22E92FDFBD2 PRP: Verified PRP without proof (small exponent)
2017-10-12	kkmrkkblmbrbk	C-PRP	M5483/888247 : A5FEE66E1A6665C0 PRP: Verified PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M5483/888247 : A5FEE66E1A6665C0 PRP: Verified PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M5483/888247 : A5FEE66E1A6665C0 PRP without proof (not generated)