3 272 713 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

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

Factored

Factor	Digits	Bits	Date
10103505008124944888708752487	29	93.0	2025-05-21 20:07:04

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	83 / 640

Estimated T-Level: 25.6 ⓘ

TF below 2^80 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)	1998-05-01	Ant¢nio B. Sousa	423A94D29955EE65	0
Verified (Factored)	1998-05-01	António B. Sousa	423A94D29955EE65	0
Verified (Factored)	2000-01-12	Brian	423A94D29955EE65	842216

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2025-05-21	daveward2005	1C74346B619BA76F	1	1528983	5	3

History

Date	User	Type	Result
2025-05-21	Pappy	CERT	PRP Certification Proof certified good
2025-05-21	daveward2005	C-PRP	M3272713/10103505008124944888708752487 : 1C74346B619BA76F PRP proof power = 7 PRP: Verified Proof certified good
2025-05-21	daveward2005	F-ECM	Factor: 10103505008124944888708752487 / (ECM curve 35, B1=152976, B2=616193655, Edwards Sigma=2625419320159032)
2023-06-11	Sid & Andy	NF-PM1	B1=8500000, B2=21768755190
2023-05-29	Joss	NF-PM1	B1=1000000, B2=2236514280
2022-04-13	TJAOI	NF	no factor from 2^69 to 2^70
2021-06-07	TJAOI	NF	no factor from 2^68 to 2^69
2020-12-18	mikr	NF-PM1	B1=4000000, B2=150000000, E=12
2018-12-10	TJAOI	NF	no factor from 2^67 to 2^68
2017-04-04	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-01-16	Joss	NF-PM1	B1=383400, B2=3834000, E=6
2015-06-28	Tha	NF	no factor from 2^65 to 2^66
2015-02-07	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-02-07	VictordeHollander	NF	no factor from 2^63 to 2^64
2014-10-10	Joss	NF-PM1	B1=99224
2014-06-26	-Anonymous-	NF-PM1	B1=79612
2012-12-30	dbaugh	NF	no factor from 2^62 to 2^63
2011-10-09	c10ck3r	NF	no factor from 2^61 to 2^62
2011-09-19	USAFSS	NF-PM1	B1=60000, B2=1065000, E=6
2009-07-08	Carsten Kossendey	NF-PM1	B1=15000, B2=191250
2009-04-03	S485122	NF	no factor from 2^60 to 2^61

Username
Password