63 671 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
127343	6	17.0	old
19483327	8	24.2	2008-08-26 20:09:01
112060961	9	26.7	2008-08-26 20:09:01
223612553	9	27.7	2008-08-26 20:09:01
170668373644332273319	21	67.2	2009-06-20 03:31:37
6584362201529193355344652489	28	92.4	2017-01-10 00:55:06
1304789748590524525036136750983	31	100.0	2019-03-16 23:21:21

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	640 / 640
35	1000000	1566 / 1566
40	3000000	542 / 4588

Estimated T-Level: 35.6 ⓘ

TF below 2^113 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-09-21	Oliver Kruse	5626105AD9F8D4A8	6	0	1	3
Verified (Factored)	2017-10-02	kkmrkkblmbrbk	5626105AD9F8D4A8	6	0	1	3
Verified (Factored)	2017-12-07	ATH	5626105AD9F8D4A8	6	16689	1	3
Verified	2019-03-17	alex	B97F001160652AC6	7	43470	5	3
Verified	2019-03-17	ATH	B97F001160652AC6	7	42653	5	3
Verified (Factored)	2022-05-12	Jorge Coveiro	B97F001160652AC6	1	36319	5	3

History

Date	User	Type	Result
2022-11-11	George Woltman	NF-PM1	B1=1000000000, B2=92348999993250
2022-05-12	Jorge Coveiro	C-PRP	M63671/127343 : B97F001160652AC6 PRP: Verified (Factored) PRP without proof (small exponent)
2021-04-29	ATH	NF-PP1	Start=2/7, B1=15000000, B2=1500000000
2021-04-15	Seth_Tr	NF-PM1	B1=400000000, B2=76400000000
2021-03-15	Seth_Tr	NF-PM1	B1=200000000, B2=34200000000
2019-03-17	ATH	C-PRP	M63671/127343/19483327/112060961/223612553/170668373644332273319/6584362201529193355344652489/1304789748590524525036136750983 : B97F001160652AC6 PRP: Verified (Factored) PRP without proof (small exponent)
2019-03-17	alex	C-PRP	M63671/127343/19483327/112060961/223612553/170668373644332273319/6584362201529193355344652489/1304789748590524525036136750983 : B97F001160652AC6 PRP: Verified (Factored) PRP without proof (small exponent)
2019-03-16	Niels_Mache_Nextcloud	F-ECM	Factor: 1304789748590524525036136750983 / (ECM curve 3, B1=1000000, B2=100000000)
2017-12-07	ATH	C-PRP	M63671/127343/19483327/112060961/223612553/170668373644332273319/6584362201529193355344652489 : 5626105AD9F8D4A8 PRP: Verified (Factored) PRP without proof (small exponent)
2017-10-02	kkmrkkblmbrbk	C-PRP	M63671/127343/19483327/112060961/223612553/170668373644332273319/6584362201529193355344652489 : 5626105AD9F8D4A8 PRP: Verified (Factored) PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M63671/127343/19483327/112060961/223612553/170668373644332273319/6584362201529193355344652489 : 5626105AD9F8D4A8 PRP without proof (not generated)
2017-01-10	kkmrkkblmbrbk	F-ECM	Factor: 6584362201529193355344652489 / (ECM curve 146, B1=250000, B2=25000000)
2016-10-21	kkmrkkblmbrbk	NF-PM1	B1=100000000, B2=2000000000, E=12
2009-06-20	Matthias Wurtinger	F-ECM	Factor: 170668373644332273319
2008-08-26	-Anonymous-	F	Factor: 223612553
2008-08-26	-Anonymous-	F	Factor: 112060961
2008-08-26	-Anonymous-	F	Factor: 19483327