Great Internet Mersenne Prime Search (GIMPS)

Prime95, also distributed as a command-line utility mprime under FreeBSD and Linux, is a freeware application written by George Woltman. It is used by Great Internet Mersenne Prime Search (GIMPS), a distributed computing project dedicated to Mersenne prime hunting. In overclocking circles, its also commonly used for stability testing.

This repo is a mirror to Free Mersenne Prime Search Software source code for Windows, Linux, FreeBSD, and Mac OS X.

You could download the latest code from GIMPS or release page.

Mirror rank from PrimeNet Top Overall Teams

Top producers for the last year.
This hourly report generated 2026-10-10 16:00 UTC

Rank	Team Name	Total GHz Days	90 day	30 day	7 day	1 day	TF	P-1	LL/PRP	DC	ECM	ECM-F
1	Ars Technica Team Prime Rib	195498537	⬆ 3					99.4		0.6
2	Slovakia	159545798	⬇ 1				0.3	88.4	0.4	0.1	10.8
3	PrimeNet	151839764					0.2	80.2	0.6	0.8	18.2
4	GIMPS.Russia	140318591	⬇ 2				1.0	0.1	0.3		98.7
5	-Too many Ones-	69052670	⬆ 1	⬆ 1				78.8			21.2
6	POLAND	68646533	⬇ 1	⬇ 1			1.5	93.9	0.6	0.1	3.9
7	Team#1	23007900					1.9	16.6	44.1	35.5	2.0
8	GIMPSChina	20148238					42.4	32.5	4.7	0.7	19.7
9	UCM-curtisc	13092800	⬆ 1						99.2	0.8
10	Numberphile	12666575	⬆ 2				3.2	18.4	4.8	1.8	71.8
11	Team-Deutschland	10886300					1.6	67.8	2.0	0.3	28.2
12	More Power!!!	8395280	⬆ 1				18.2	72.9	3.7	3.3	2.0
13	GW's legions	6259303	⬇ 4	⬆ 2	⬆ 1		0.1	1.7	89.9	4.2	4.0
14	Porta Kruse	6243795	⬆ 1	⬇ 1	⬇ 1		2.0	0.5			91.1	6.3
15	GPU to 72	6069160	⬆ 2	⬆ 1	⬆ 1		42.3	39.6	3.0	3.0	11.9
16	TeamUK	6023414	⬇ 2	⬇ 2	⬇ 1		44.6	1.9	22.1	2.1	29.2
17	tsc	3937937	⬆ 1				55.3	1.6	0.9	0.3	41.8
18	UW Eau Claire	3654141	⬆ 1				91.1		6.5	2.4
19	UKRAINE	3579090	⬆ 1				1.2	5.5	87.0	6.2
20	Argentina	2563445	⬆ 1				92.1		7.9
21	NetBSD	2277639	⬆ 194	⬆ 193	⬆ 37	⬆ 31		4.9			95.1
22	GIMPS.Korea	1998364	⬆ 1		⬇ 1	⬇ 1	87.1	4.3	3.3	0.7	4.5
23	Wikipedia	1741455	⬇ 1	⬇ 2	⬇ 1	⬇ 1	53.6	38.2	5.1	2.0	0.9
24	Dutch Power Cows	1287451	⬆ 3	⬇ 1	⬇ 1	⬇ 1	28.9	7.3	1.2	2.0	60.6
25	404 - "Primes not Found"	1079674	⬆ 4			⬇ 1	90.1		9.8	0.1
26	MBAi.Cloud	804474	⬆ 2	⬆ 1		⬇ 1			99.9	0.1
27	Swedes Of Primes	751623	⬇ 1	⬇ 1		⬇ 1	2.2	76.3	17.8	3.7
28	GIMPS.USA	611461	⬆ 4	⬆ 1		⬇ 1	42.1	34.9	17.4	3.5	1.8
29	MATHSareREAL	560335	⬆ 1	⬇ 1		⬇ 1	96.4		2.4	1.2
30	unRAID	500474	⬆ 10	⬆ 16	⬆ 2	⬇ 1		88.3	7.6	1.3	2.8
31	Buhr	466565		⬇ 1	⬇ 1	⬇ 1	40.0	7.3	16.1	5.9	30.6
32	citizenscience.ru	443734	⬆ 1		⬇ 1	⬇ 1	68.8	0.2	7.3	0.9	22.8
33	Colorado School of Mines	428044	⬆ 1	⬇ 2		⬇ 1	81.2		17.1	1.6
34	MOXA	359764	⬆ 4			⬇ 1	100.0
35	GIMPS.Occitania	351916	⬇ 10	⬇ 11	⬇ 11	⬇ 1		16.0				84.0
36	Rechenkraft.net	343600	⬇ 1	⬇ 1	⬇ 1	⬇ 1		51.2	5.3	7.2	36.3
37	S485122	301065	⬆ 2	⬇ 1	⬇ 1	⬇ 1		95.0		5.0
38	nranks	294448	⬆ 5	⬆ 1		⬇ 1	25.5	0.4	2.2	0.3	71.6
39	GIMPS.Japan	290148	⬇ 2	⬇ 2	⬇ 2	⬇ 1	46.0		39.5	14.2	0.3
40	NanJing Tech	237582	⬆ 4			⬇ 1	22.1		67.3	10.4
41	Terry Kim Team	233198	⬇ 5	⬇ 3	⬇ 2	⬇ 1	93.9		4.5	1.1
42	GIMPS Team Philippines	210148	⬆ 3		⬇ 1	⬇ 1	46.1		10.6	2.2	36.5
43	YahsTeam	202885	⬇ 2	⬇ 2	⬇ 1	⬇ 1	86.7		10.4	2.9
44	IOTA	159741	⬆ 9	⬆ 4		⬇ 1	93.0		4.7	2.3
45	GIMPS.Portugal	156790	⬆ 14	⬆ 2		⬇ 1	49.8	48.7		1.4
46	Team Tartan	152219	⬆ 2	⬇ 2		⬇ 1			77.3	22.7
47	NerdyGirls	151929	⬇ 1	⬇ 4	⬇ 4	⬇ 1		43.8	5.3	50.8
48	Canada	148168	⬇ 1	⬇ 3	⬇ 1	⬇ 1	9.5	0.4	64.7	25.3
49	GIMPS.NZ	137848	⬆ 1		⬇ 1	⬇ 1	78.9	0.2	13.0	7.9	0.1
50	Team China	131037	⬆ 1		⬇ 1	⬇ 1	0.3		99.4	0.3
51	ComputerraRU	126770	⬆ 27	⬆ 7	⬇ 1	⬇ 1	75.6		22.4	2.0
52	VIPR	112994	⬆ 6		⬇ 1	⬇ 1	96.7		2.1	1.0
53	Wile E. Coyote	99391	⬆ 9	⬆ 4	⬆ 2				69.0	0.1	30.9
54	GIMPS.France	98959		⬆ 2	⬇ 1		1.1	87.6	5.7	4.0	1.5
55	Unicamp	97905	⬇ 3	⬇ 4	⬇ 3		68.3		31.4	0.3
56	UIUC	97059	⬆ 1	⬇ 2	⬇ 2				67.6	32.4
57	AMD Users	93331	⬇ 2	⬇ 2	⬇ 1		50.0	0.6	0.9	48.1	0.4
58	NUST	92410	⬆ 23	⬆ 1	⬇ 1		56.2	42.4	0.9	0.5
59	SHADO	77315	⬆ 1	⬆ 2					63.9	17.3	11.9	0.8
60	Eratosthenes Sieve	71337	⬆ 4	⬆ 2					93.6	6.3
61	GIMPS China	70418	⬆ 2	⬆ 3			84.8		9.1	0.1	5.8
62	SASAKI	69958	⬇ 6	⬇ 2			100.0
63	Net-Work	68305	⬆ 2				6.6	1.2		0.8	78.6
64	Team_Italia	67019	⬆ 9	⬆ 3			3.4	0.5	64.7	22.8	6.1	0.9
65	S147127	66416	⬆ 3	⬆ 1			33.4		33.8	32.8
66	ParadoxZ Commando	63954	⬆ 3	⬆ 2	⬆ 2	⬆ 1			72.3	27.7
67	Esperanto	63101		⬆ 2		⬇ 1		25.6	5.2	69.2
68	Wisconsin	61935	⬇ 7	⬇ 3	⬇ 2		22.8		40.8	36.3
69	EgyptianPolymaths	51331	⬆ 6	⬆ 1				79.7
70	Cap'n Entropy's Cavalcade of Wonderment	48365		⬆ 1	⬆ 2		64.6	9.3	21.6	4.5
71	AJ	47270	⬆ 3	⬆ 2					75.0	25.0
72	Aiblspitz	41697	⬆ 22	⬆ 5	⬆ 1			93.4		6.6
73	Brno University of Technology	40194	⬆ 4	⬆ 2	⬆ 1				76.2	23.8
74	Hungary	40026	⬆ 2		⬆ 3				6.1	0.6	93.2
75	One Man Team	39556	⬇ 59	⬆ 1	⬆ 1				99.9
76	Team Belgium	38498	⬆ 3	⬆ 2	⬆ 2	⬆ 1	1.3	2.5	36.3	22.0	37.9
77	Team Israel	38174	⬇ 5	⬇ 5	⬇ 2	⬇ 1	93.8		5.5	0.7
78	Turku	36285	⬆ 4	⬆ 1	⬆ 1				100.0
79	ᕙ(⇀‸↼‶)ᕗ	33674	⬆ 10	⬆ 6	⬆ 3	⬆ 2	0.6		98.9	0.5
80	huskers-gimps	33170	⬆ 3		⬆ 1	⬇ 1			74.4	25.6
81	Hermessz	32845	⬆ 7	⬆ 3	⬆ 2	⬆ 1	63.8		33.8	2.4
82	Team H	31314	⬆ 4		⬆ 2	⬇ 2	15.1		84.4	0.5
83	MurrayInfoSys	30386	⬆ 12	⬆ 5	⬆ 3				70.6	29.4
84	Debian	30222	⬆ 3	⬇ 1	⬆ 1				98.1	1.9
85	baraCUDA	29906	⬆ 5	⬆ 2	⬆ 2				100.0
86	Mensa	26989	⬆ 42	⬆ 19	⬆ 5				73.4	26.6
87	HardOCP	26543	⬇ 2	⬆ 4	⬆ 6				71.4	28.6
88	GIMPS.NEO	26365	⬇ 8	⬇ 2					83.9	16.1
89	OverclockerAustralia	25506	⬇ 40	⬇ 36	⬇ 9					78.9
90	The Fellowship of Infinity	25126	⬆ 1	⬇ 1	⬇ 1				99.5	0.5
91	Channel 4	24726	⬆ 1	⬆ 1	⬆ 1				80.7	19.3
92	Costa Rica	24058	⬆ 4	⬆ 3	⬆ 2				83.6	15.9
93	Small-Team-2000	23996			⬇ 3					99.5	0.5
94	Team Viet Nam	20757	⬇ 10	⬇ 4	⬆ 1		58.8		22.6	18.6
95	Georgia Tech	20319	⬆ 3	⬆ 2	⬆ 1				100.0
96	randomteam	19223	⬇ 30	⬆ 3	⬆ 2						100.0
97	Com Systems (RU)	19059	⬆ 6	⬆ 1					70.2	29.8
98	socal_prime	17609	⬇ 1	⬇ 2	⬆ 1				71.5	28.5
99	GIMPS Romania	17483	⬆ 3	⬆ 2	⬆ 1		73.6		23.5	3.0
100	SpartaAlumni	17281	⬆ 5	⬆ 6	⬆ 1				64.0	36.0
101	LimePrime	16671	⬇ 2	⬇ 1	⬆ 1				90.4	9.6
102	RobotechResearch	16613	⬆ 6	⬆ 1	⬆ 1				48.0	52.0
103	TurkishMath	16159	⬆ 3	⬆ 1	⬆ 2				95.2	4.8
104	A Single Engineer	16025	⬇ 3	⬇ 2					73.3	26.7
105	PrimitiveRootsCircle	14400	⬇ 1	⬆ 2	⬆ 1		4.3		66.7	27.6	1.3
106	Prime Rib	13795	⬆ 31	⬆ 14	⬆ 1				98.4	1.5
107	moeses	13464	⬆ 2	⬆ 1	⬆ 1				99.0	1.0
108	The_Dude_Abides	12559	⬆ 23	⬆ 11	⬆ 2				26.5	59.0	0.8
109	Portland State University	11931	⬆ 3	⬆ 1				32.2	63.0	4.7
110	GIMPS.Taiwan	11404	⬆ 25	⬆ 23	⬆ 6				88.3	11.2	0.1
111	FREE ROBUX	10852	⬆ 3						100.0
112	Royal Military College of Canada	10691	⬆ 5				89.7		7.9	2.4
113	Ozzie Prime	10625	⬇ 2						22.6	15.6		61.9
114	University of Waterloo	9840	⬆ 4	⬆ 1					94.5	5.5
115	Morocco	9582	⬆ 30	⬆ 17	⬆ 7				68.8	31.2
116	Team Retired	9258	⬇ 16	⬇ 7	⬇ 1					1.0
117	Syntony	9135	⬆ 3		⬆ 1					100.0
118	Arpan Sen Labs	9118	⬆ 18	⬆ 5	⬆ 1				58.0	42.0
119	LTT fans	9056	⬆ 2	⬆ 2	⬆ 2		92.5				7.5
120	Shaffer's Studio	8684	⬆ 2	⬆ 4	⬇ 3				90.4	9.5
121	Team Slovenia	8664	⬇ 5	⬇ 3	⬆ 2				63.4	36.6
122	math.auth.gr	8551	⬆ 4	⬆ 3	⬆ 3				100.0
123	Pavlicin	8407	⬆ 4	⬆ 4	⬆ 3		79.7	0.1	20.2
124	Team Finland	8337	⬇ 5	⬇ 10	⬇ 4		2.7		94.1		3.2
125	JiBoTeam	8318		⬆ 4	⬆ 2					100.0
126	FreeBSD	8244	⬆ 3	⬆ 4	⬆ 3				69.1	30.9
127	Nerdfighters for Mersenne Primes	8230	⬇ 14	⬇ 5	⬆ 3				96.6	3.4
128	Spain	7524	⬇ 21	⬇ 2					73.1	26.9
129	Die Zeitfinder	7337	⬇ 6	⬆ 2	⬆ 2				89.4	10.6
130	SETI.USA	7296	⬆ 85	⬆ 21	⬆ 9				69.5	30.5
131	SETI.Germany	7260	⬇ 1	⬇ 3	⬆ 1					100.0
132	México mágico	7231	⬆ 11	⬆ 11	⬆ 1				88.7	11.3
133	Granada	6899	⬇ 9	⬆ 1	⬆ 2		31.2		23.0	45.7
134	Server66	6758	⬇ 2	⬆ 1	⬆ 2		100.0
135	FactorMania	6572	⬆ 3	⬆ 1	⬆ 2			56.9			43.1
136	Triangle	6404	⬇ 2	⬆ 1	⬇ 2				98.8	1.2
137	Korea.Prime	6335	⬆ 7	⬆ 2	⬆ 1				74.9	25.1
138	Team Christensen	6173	⬆ 2	⬆ 2	⬆ 5					100.0
139	irowiki	6116	⬆ 2	⬆ 3	⬆ 1					100.0
140	Team Bulgaria	6074	⬆ 43	⬆ 23	⬆ 1				68.3	30.9	0.7
141	The Court of the Math Jester	6008	⬆ 74	⬆ 28	⬆ 12	⬆ 1	5.1		85.7	9.2
142	Brasil	6005		⬆ 3		⬇ 1			79.6	20.2
143	Abacus	5573	⬇ 10	⬇ 5	⬆ 2				98.8	1.2
144	Phi Kappa Theta	5544	⬆ 12	⬆ 6					75.3	24.7
145	SpongeBob SquarePants	5394	⬇ 121	⬇ 112	⬇ 75				60.0	40.0
146	KnightLight	4941								100.0
147	DePaul MAT 141	4934	⬆ 1						99.6	0.4
148	Crunching@EVGA	4888	⬆ 1						99.7	0.3
149	Politeknik Banting, Selangor	4872	⬆ 8	⬆ 5	⬆ 1		99.9			0.1
150	teamMALI	4762	⬆ 3	⬇ 9	⬇ 1				84.0	16.0
151	YESHUA IS THE MESSIAH	4648	⬇ 1	⬇ 2		⬆ 1			99.2	0.8
152	Hong Kong GIMP	4519		⬇ 8		⬆ 1			70.9	29.1
153	BitMEX Research	3911	⬇ 82	⬇ 59	⬇ 29	⬇ 2			100.0
154	Catalunya Team	3707	⬆ 61	⬆ 14	⬆ 3				91.8	8.2
155	Noam Karni Team	3702	⬇ 1	⬇ 3	⬇ 1				85.3	14.7
156	Team Norway	2944	⬇ 17	⬇ 3			70.6			8.7	19.9
157	Denmark	2800	⬆ 58	⬆ 33	⬆ 11				60.5	39.5
158	Quantus	2773	⬇ 48	⬇ 42	⬇ 3		43.8		28.8	27.4
159	Pi Rho	2499	⬆ 2	⬇ 3	⬇ 1				67.1	32.9
160	GIMPSMalaysia	2394	⬆ 2	⬇ 2	⬇ 1				66.8	33.2
161	GIMPS.Hong Kong	2384	⬇ 1	⬇ 4	⬇ 1		1.5		35.1	63.4
162	cr_colorado	2344	⬆ 12	⬆ 10	⬇ 1					100.0
163	CZAsTc	2288	⬆ 1	⬇ 4	⬇ 1				99.6	0.4
164	The Planetary Society	2237	⬆ 51	⬇ 4	⬇ 1				76.1	23.9
165	Team Austria	2199		⬇ 4	⬇ 1		12.8	9.5	77.7
166	GIMPS_KS	2199		⬇ 4	⬇ 1				36.5	62.0	1.4
167	Olympic College	2074	⬇ 9	⬇ 12	⬇ 1					100.0
168	The Prime Pioneers	1919	⬆ 2	⬇ 4	⬇ 1			100.0
169	alan145	1876	⬆ 41	⬆ 25	⬆ 4		76.9	8.3			14.8
170	Subprime Searches	1756	⬆ 30	⬆ 32	⬆ 11		85.4			14.6
171	Timesc	1711	⬆ 44	⬆ 11	⬆ 13				100.0
172	Obsidian	1579	⬆ 3	⬇ 7	⬇ 2					100.0
173	I Love Canadian Natural Resources	1542	⬆ 3		⬇ 1					100.0
174	Vegan	1384	⬆ 23						60.9	39.1
175	zeit	1283	⬇ 12	⬇ 5			17.8			82.2
176	Azerbaijan	1142	⬆ 39	⬆ 3						98.1	1.8
177	Amserver	1066	⬆ 1	⬇ 2			100.0
178	youngfun429	1037	⬆ 2	⬇ 1					75.3	24.7
179	Elisabeth-von-Thadden-Schule	1015	⬇ 28	⬇ 13					76.2	23.8
180	Therian Primes	1007	⬆ 2	⬇ 2				14.6		52.4	33.0
181	RafaÅ‚ HacuÅ›	860	⬆ 4	⬇ 1	⬆ 1				100.0
182	Czech National Team	857	⬆ 2	⬇ 1	⬆ 1				96.7	0.2	1.8
183	UMD University of Maryland Prime Hunters	850	⬆ 32		⬆ 2				100.0
184	PARG team	838	⬆ 8	⬆ 5	⬆ 2					97.4	2.6
185	AWC	801	⬆ 1	⬇ 1	⬆ 2				100.0
186	hreid	799	⬇ 13	⬇ 15	⬇ 15				100.0
187	VRS_SE	794	⬇ 18	⬇ 11	⬆ 1				99.0	1.0
188	Hyperion	642	⬇ 33	⬇ 21	⬆ 1					6.3
189	SGDynamo Dresden	548	⬆ 2	⬇ 1	⬆ 1		100.0
190	Join Us 😈	543	⬇ 11	⬆ 1	⬆ 1		35.2			64.8
191	PrimeObsession	539	⬆ 2	⬆ 1	⬆ 1					100.0
192	Much prime! (wow)	532	⬆ 23	⬆ 1	⬆ 1					100.0
193	Furry Primes	514	⬇ 26	⬇ 6	⬆ 1					100.0
194	GIMPS.Romania	422		⬆ 1	⬆ 1				100.0
195	Kabylie	342	⬇ 27	⬇ 9	⬆ 1		26.8			73.2
196	LIKN	285	⬆ 19	⬆ 1	⬆ 1					99.9
197	Yurunago	276	⬇ 1	⬆ 1	⬆ 1					100.0
198	Byberg Nordic Prime	265		⬆ 1	⬆ 1					100.0
199	FDY	265		⬆ 1	⬆ 1					100.0
200	TunisianTeam	258	⬇ 19	⬆ 1	⬆ 1					100.0
201	miiro	240	⬆ 2	⬆ 2	⬆ 1		100.0
202	/r/counting	184	⬆ 7	⬆ 5	⬆ 2
203	DividerHunt	153	⬆ 3	⬆ 2			100.0
204	GIMPS.Peace	122	⬆ 7	⬆ 5	⬆ 1		44.7	55.3
205	sannerud.com	110	⬆ 7	⬆ 5	⬆ 1		42.4				20.7	36.9
206	Optimists Prime	54	⬆ 9	⬆ 8	⬆ 1			100.0
207	Team Dominik Radler	46		⬆ 4	⬆ 2		100.0
208	His Dark Materials	30	⬇ 13								100.0
209	GIMPS_IOM	19	⬇ 4	⬆ 3	⬆ 1		100.0
210	yfinder	0	⬆ 4	⬆ 3	⬆ 2					100.0