2 115 653 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

Composite, with 3 known prime factors. Cofactor is composite.

Factored

Factor	Digits	Bits	Date
4772913169	10	32.2	old
101733290159	12	36.6	2008-07-14 20:20:32
236564081551155403807	21	67.7	2022-04-14 08:05:47

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	169 / 640

Estimated T-Level: 26.3 ⓘ

TF below 2^82 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-10-07	Oliver Kruse	4498D2C5B2CC1C2D	2	0	1	3
Verified (Factored)	2017-11-17	Chang Chia-Tche	4498D2C5B2CC1C2D	2	384981	1	3
Verified	2022-04-16	_p95holder_	730F4582950EA789	3	1120656	5	3
Verified	2022-04-20	Oliver Kruse	730F4582950EA789	3	1072731	5	3

History

Date	User	Type	Result
2022-04-20	Ben Delo	CERT	PRP Certification Proof certified good
2022-04-20	Oliver Kruse	C-PRP	M2115653/4772913169/101733290159/236564081551155403807 : 730F4582950EA789 PRP proof power = 7 PRP: Verified Proof certified good
2022-04-16	_p95holder_	C-PRP	M2115653/4772913169/101733290159/236564081551155403807 : 730F4582950EA789 PRP: Verified PRP without proof (not generated)
2022-04-14	_p95holder_	F-ECM	Factor: 236564081551155403807 / (ECM curve 4, B1=50000, B2=5000000)
2017-11-17	Chang Chia-Tche	C-PRP	M2115653/4772913169/101733290159 : 4498D2C5B2CC1C2D PRP: Verified PRP without proof (not generated)
2017-10-07	Oliver Kruse	C-PRP	M2115653/4772913169/101733290159 : 4498D2C5B2CC1C2D PRP: Verified PRP without proof (not generated)
2016-03-24	alpertron	NF-PM1	B1=500000, B2=15000000, E=12
2008-07-14	George Woltman	F-ECM	Factor: 101733290159