1 453 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
8719	4	13.1	old
6479507883338993	16	52.5	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	34219 / 105362

Estimated T-Level: 56.6 ⓘ

TF below 2^183 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	68151ECA0C1AF2B5	2	0	1	3
Verified	2017-10-12	kkmrkkblmbrbk	68151ECA0C1AF2B5	2	1016	1	3
Verified	2020-04-17	Oliver Kruse	99047B163FE0D460	2	879	5	3
Verified	2020-08-12	_p95holder_	99047B163FE0D460	2	983	5	3

History

Date	User	Type	Result
2021-07-20	ViliamF	NF-PP1	Start=2/7, B1=1000000000, B2=221000000000
2021-03-27	nordi	NF-PM1	B1=1000000000000, B2=2232843418649129478
2020-08-12	_p95holder_	C-PRP	M1453/8719/6479507883338993 : 99047B163FE0D460 PRP: Verified PRP without proof (small exponent)
2020-04-17	Oliver Kruse	C-PRP	M1453/8719/6479507883338993 : 99047B163FE0D460 PRP: Verified PRP without proof (small exponent)
2017-10-12	kkmrkkblmbrbk	C-PRP	M1453/8719/6479507883338993 : 68151ECA0C1AF2B5 PRP: Verified PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M1453/8719/6479507883338993 : 68151ECA0C1AF2B5 PRP: Verified PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M1453/8719/6479507883338993 : 68151ECA0C1AF2B5 PRP without proof (not generated)
2016-09-07	kkmrkkblmbrbk	NF-PM1	B1=1000000000, B2=100000000000, E=12