2 702 509 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
145935487	9	27.1	old
12842322769	11	33.6	2008-09-07 19:41:05
43123312051545906409	20	65.2	2018-04-12 10:00:04

ECM

Digits	B1	Curves
25	50000	2 / 280

Estimated T-Level: 20.0 ⓘ

TF below 2^62 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-10-19	Oliver Kruse	98B34B694946227E	2	2593317	5	3
Verified (Factored)	2017-12-04	ATH	98B34B694946227E	2	1450353	5	3
Verified	2018-04-12	ATH	98B34B694946227E	3	1805013	5	3

History

Date	User	Type	Result
2022-09-12	USAFSS	NF-PM1	B1=272000, B2=237324780
2018-04-12	ATH	C-PRP	M2702509/145935487/12842322769/43123312051545906409 : 98B34B694946227E PRP: Verified PRP without proof (not generated)
2018-04-12	Ismo Laitela	F-ECM	Factor: 43123312051545906409 / (ECM curve 2, B1=50000, B2=5000000)
2017-12-04	ATH	C-PRP	M2702509/145935487/12842322769 : 98B34B694946227E PRP: Verified PRP without proof (not generated)
2017-10-19	Oliver Kruse	C-PRP	M2702509/145935487/12842322769 : 98B34B694946227E PRP: Verified PRP without proof (not generated)
2008-09-07	Will Edgington	F	Factor: 12842322769