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 2026-08-28 21:00 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	171290346	⬆ 3	⬆ 3	⬆ 1	⬆ 1		99.3		0.6
2	GIMPS.Russia	164510629		⬇ 1	⬇ 1	⬇ 1	0.8	0.1	0.2		98.9
3	Slovakia	156527371	⬇ 2	⬇ 1			0.3	88.4	0.4	0.1	10.8
4	PrimeNet	150690922	⬆ 1	⬇ 1			0.2	80.0	0.6	0.8	18.3
5	POLAND	111368426	⬇ 2				1.0	96.0	0.4	0.1	2.6
6	-Too many Ones-	66588560						78.0			21.9
7	Team#1	23007900	⬆ 1				1.9	16.6	44.1	35.5	2.0
8	GIMPSChina	20531707	⬇ 1				46.5	31.7	4.4	0.7	16.7
9	Numberphile	12628769	⬆ 8				3.4	18.1	4.8	1.7	72.0
10	UCM-curtisc	12628722							99.2	0.8
11	Team-Deutschland	11160672					2.1	65.6	1.3	0.2	30.8
12	More Power!!!	9107612					18.3	73.7	3.2	3.0	1.8
13	Porta Kruse	6328074	⬆ 2	⬆ 1	⬆ 1	⬆ 1	2.0	0.5			91.2	6.2
14	TeamUK	6325427		⬇ 1	⬇ 1	⬇ 1	45.7	2.5	21.1	1.9	28.8
15	GW's legions	6121508	⬇ 6				0.1	2.0	89.2	4.1	4.5
16	GPU to 72	5954323					43.9	37.3	1.8	3.1	13.7
17	tsc	3715577	⬆ 2	⬆ 2			56.8	2.2	0.9	0.3	39.8
18	One Man Team	3656231	⬇ 5	⬇ 1				98.7	1.3
19	UW Eau Claire	3654141	⬇ 1	⬇ 1			91.1		6.5	2.4
20	UKRAINE	3016402	⬆ 1				4.7	4.8	82.2	8.3
21	Argentina	2563445	⬇ 1				92.1		7.9
22	Wikipedia	1878801	⬆ 1				56.6	35.5	4.8	2.0	0.9
23	GIMPS.Korea	1724048	⬆ 3				87.8	4.6	3.4	0.8	3.3
24	GIMPS.Occitania	1186182	⬆ 1					4.5				95.5
25	Dutch Power Cows	1099049	⬆ 2	⬆ 2	⬆ 3		38.0	10.1	1.4	2.3	48.2
26	404 - "Primes not Found"	977859	⬆ 13	⬆ 3	⬇ 1		92.6		7.3	0.1
27	Swedes Of Primes	893893	⬇ 3	⬇ 1	⬇ 1		1.9	77.1	17.6	3.5
28	MBAi.Cloud	823116			⬇ 1				99.9	0.1
29	MATHSareREAL	578886		⬆ 1	⬆ 1		96.2		2.5	1.3
30	SpongeBob SquarePants	565014	⬇ 8	⬇ 5	⬇ 1			30.7	64.9	4.4
31	GIMPS.USA	491294	⬆ 10	⬆ 1	⬆ 1		32.0	43.5	17.9	3.9	2.2
32	Buhr	475147		⬇ 1	⬇ 1		44.3	6.1	16.6	5.6	27.4
33	Colorado School of Mines	420288	⬆ 4				82.7		16.0	1.3
34	citizenscience.ru	375875	⬇ 3				85.8	1.3	7.9	1.1	3.8
35	MOXA	357942	⬆ 1	⬆ 2			99.6		0.4
36	Rechenkraft.net	347170	⬇ 2				0.1	51.4	4.8	7.2	36.4
37	Terry Kim Team	318005	⬇ 2	⬇ 2			95.1		3.6	0.9
38	GIMPS.Japan	301961	⬇ 5				44.6		40.2	14.8	0.3
39	S485122	301685	⬇ 1					95.1		4.9
40	nranks	263557	⬆ 2				28.3	0.4	2.7	0.3	68.2
41	YahsTeam	227842	⬆ 2				86.3		11.1	2.6
42	NanJing Tech	216777	⬆ 4				24.2		72.4	3.4
43	GIMPS Team Philippines	202335	⬆ 2				47.9		11.0	2.2	34.4
44	NerdyGirls	192143		⬆ 1				44.2	5.0	50.8
45	Canada	169825	⬆ 3	⬆ 2			8.3	1.0	65.5	25.2
46	Team Tartan	163870	⬆ 1	⬆ 2					77.7	22.3
47	GIMPS.Portugal	152941	⬆ 10	⬆ 3			48.5	50.0		1.5
48	IOTA	149343	⬆ 8	⬆ 5	⬆ 1		93.8		4.5	1.7
49	OverclockerAustralia	144686			⬇ 1		60.7		14.5	19.8
50	GIMPS.NZ	138499		⬆ 1			79.0	0.2	12.0	8.8	0.1
51	Team China	131778		⬆ 1					99.7	0.3
52	Unicamp	119853		⬆ 2			69.4		28.3	2.3
53	GIMPS.France	117218		⬆ 2			9.5	68.4	4.9	5.3	11.8
54	unRAID	111936	⬇ 24	⬇ 8	⬆ 2	⬆ 3		41.1	51.8	6.3	0.8
55	VIPR	110239	⬆ 21	⬆ 1		⬇ 1	95.7		2.9	1.3
56	UIUC	97649	⬆ 6	⬆ 2	⬆ 1	⬇ 1			67.0	33.0
57	AMD Users	94942	⬆ 2		⬆ 1	⬇ 1	49.1	0.6	5.0	44.8	0.4
58	Wile E. Coyote	85927	⬆ 8	⬆ 2	⬆ 1				74.1	0.1	25.8
59	SASAKI	81156	⬇ 4		⬆ 1	⬆ 1	100.0
60	Smoke-it	80433	⬇ 20	⬇ 16	⬇ 6	⬇ 1	91.4	8.6
61	GIMPS China	74034	⬇ 3	⬆ 4	⬆ 1		82.7		10.6	0.1	6.4
62	Eratosthenes Sieve	73744	⬆ 5	⬆ 1	⬆ 3		0.7		94.2	5.0
63	Net-Work	72507	⬆ 2	⬆ 1	⬆ 1	⬆ 1	6.2	1.0			81.6
64	SHADO	72471	⬇ 1	⬇ 3	⬇ 1	⬇ 1			61.1	18.6	12.6	1.1
65	NUST	72378	⬆ 42	⬆ 8	⬆ 1		56.0	42.2	1.2	0.6
66	Wisconsin	72126	⬇ 5	⬇ 4	⬇ 5		29.4		36.1	34.5
67	S147127	68031	⬆ 5				34.1		27.1	38.8
68	Team_Italia	66172	⬆ 7	⬆ 1			3.1	0.5	66.5	21.7	4.6	1.8
69	Esperanto	64481	⬇ 1	⬇ 1				25.7	5.0	69.2
70	ComputerraRU	63253	⬆ 7	⬆ 8	⬆ 5	⬆ 1	45.8		50.3	3.9
71	ParadoxZ Commando	62247		⬇ 1	⬇ 1	⬇ 1			71.4	28.6
72	Cap'n Entropy's Cavalcade of Wonderment	51676	⬇ 8	⬇ 1	⬇ 1		70.7	9.2	16.0	4.1
73	EgyptianPolymaths	51331	⬇ 4	⬆ 3				84.1
74	Team Israel	50615	⬇ 1	⬇ 2	⬇ 2		96.4		3.1	0.5
75	Hungary	46791	⬇ 1	⬇ 1	⬇ 1				5.2	1.1	93.7
76	AJ	45414	⬇ 6	⬆ 1					74.1	25.9
77	Brno University of Technology	44895	⬆ 1	⬆ 2					79.2	20.8
78	Team Belgium	37712	⬆ 3	⬆ 2			1.4	2.6	31.6	25.7	38.7
79	Turku	36285	⬆ 4	⬆ 3	⬆ 1				100.0
80	Aiblspitz	36082	⬆ 19	⬆ 9	⬆ 2			93.2		6.8
81	huskers-gimps	35840	⬆ 3						75.0	25.0
82	Debian	33368	⬆ 4	⬆ 3	⬆ 3				98.2	1.8
83	Team Viet Nam	33194	⬇ 3	⬆ 1			36.8		37.7	25.5
84	Hermessz	32617	⬆ 4	⬆ 2	⬆ 2	⬆ 1	63.8		33.8	2.4
85	GIMPS.NEO	31922	⬇ 6	⬇ 2	⬇ 1	⬆ 1			83.6	16.4
86	BitMEX Research	31836	⬇ 26	⬇ 11	⬇ 7	⬇ 2			90.2	9.8
87	Team H	31763	⬇ 2		⬆ 1		14.5		84.9	0.6
88	ᕙ(⇀‸↼‶)ᕗ	31555	⬇ 1		⬆ 1		0.7		98.9	0.4
89	baraCUDA	29906		⬆ 2	⬆ 1				100.0
90	MurrayInfoSys	29477	⬆ 4	⬆ 3	⬆ 3				68.2	31.8
91	The Fellowship of Infinity	28973	⬆ 2	⬆ 1					99.5	0.5
92	HardOCP	26991	⬇ 10	⬇ 2					72.4	27.6
93	Channel 4	26314	⬇ 1	⬆ 1	⬆ 1				81.9	18.1
94	Small-Team-2000	24176	⬇ 4	⬆ 2	⬆ 1					100.0
95	Costa Rica	22943			⬆ 1				79.6	20.0
96	socal_prime	22783	⬇ 5	⬆ 1	⬆ 1				72.4	27.3	0.1
97	Georgia Tech	20319		⬆ 1	⬆ 1				100.0
98	Com Systems (RU)	19563	⬆ 10	⬆ 4	⬆ 1				72.4	27.6
99	randomteam	19223	⬇ 45	⬇ 33	⬇ 12						100.0
100	GIMPS Romania	18264	⬆ 4	⬆ 3	⬆ 1		70.4		26.7	2.9
101	LimePrime	17857	⬆ 4	⬇ 2	⬇ 1			0.9	88.8	10.4
102	A Single Engineer	17731	⬇ 2	⬇ 2					70.3	29.7
103	PrimitiveRootsCircle	15802	⬇ 1	⬆ 1			9.0		60.2	28.2	2.5
104	RobotechResearch	15785	⬆ 10	⬆ 3	⬆ 1				50.5	49.5
105	SpartaAlumni	15291	⬇ 4		⬇ 1	⬆ 1			77.3	22.7
106	TurkishMath	14513	⬆ 7		⬆ 1	⬇ 1			94.6	5.4
107	Team Retired	14157	⬇ 9	⬇ 6	⬇ 1				21.8	9.5
108	moeses	12643	⬆ 2	⬆ 3					98.9	1.1
109	Mensa	11718	⬆ 16	⬆ 22	⬆ 12				62.4	37.6
110	Portland State University	11403	⬆ 6	⬆ 2				38.9	58.4	2.6
111	Quantus	11402	⬆ 1	⬇ 2	⬇ 2		10.6		13.9	20.1		55.4
112	Spain	11131	⬇ 6	⬇ 4	⬇ 1				70.5	29.5
113	FREE ROBUX	10852	⬆ 6		⬇ 1				100.0
114	Team Slovenia	10718	⬆ 1	⬆ 4	⬇ 1				65.6	34.4
115	Royal Military College of Canada	10691	⬆ 5	⬇ 1	⬇ 1		89.7		7.9	2.4
116	Team Finland	10589	⬆ 1	⬇ 1	⬇ 1		1.3		96.2		2.5
117	Prime Rib	9917	⬆ 18		⬇ 1				98.0	2.0
118	Nerdfighters for Mersenne Primes	9775	⬇ 7	⬇ 2	⬇ 1				97.1	2.9
119	University of Waterloo	9729	⬆ 9		⬇ 1				94.4	5.6
120	Syntony	9340	⬆ 2		⬇ 1					100.0
121	LTT fans	9056	⬇ 25		⬆ 1		92.5				7.5
122	Ozzie Prime	8920	⬇ 13	⬇ 12	⬆ 1				26.9	21.4		51.8
123	Shaffer's Studio	8757	⬆ 3		⬇ 3				89.5	10.4
124	math.auth.gr	8551	⬆ 8	⬆ 1					100.0
125	The_Dude_Abides	8473	⬆ 28	⬆ 4	⬆ 2				29.5	51.9	1.2
126	Pavlicin	8407	⬆ 12	⬆ 1			79.7	0.1	20.2
127	SETI.Germany	8362	⬇ 9	⬆ 1	⬆ 1			11.3		88.6
128	JiBoTeam	8217	⬇ 4	⬇ 2	⬇ 3					100.0
129	Die Zeitfinder	8041	⬇ 2	⬆ 1					90.4	9.6
130	Arpan Sen Labs	7756	⬆ 18	⬆ 7					57.9	42.0
131	Triangle	7141		⬆ 4					99.0	1.0
132	Morocco	7097	⬆ 30	⬆ 9					58.0	41.9
133	FreeBSD	7074	⬆ 1	⬇ 1					67.7	32.3
134	GIMPS.Taiwan	7047	⬇ 11	⬆ 2					81.2	18.1	0.1
135	Server66	6758	⬆ 22	⬇ 11			100.0
136	FactorMania	6572	⬆ 3	⬆ 2				56.9			43.1
137	Abacus	6369	⬇ 1	⬇ 3					98.7	1.3
138	Granada	6142	⬇ 17	⬇ 5			31.7		25.9	42.4
139	Team Christensen	5874	⬆ 3	⬆ 3						100.0
140	irowiki	5840	⬆ 1	⬇ 1						100.0
141	teamMALI	5789	⬆ 9	⬆ 6	⬆ 5				82.5	17.5
142	México mágico	5568	⬆ 1	⬆ 2	⬇ 1				85.3	14.6
143	Hong Kong GIMP	5541	⬆ 2	⬆ 9	⬆ 1				71.8	28.2
144	Korea.Prime	5520	⬆ 8	⬆ 1	⬇ 2				71.4	28.6
145	Brasil	5187	⬇ 8	⬇ 2	⬇ 2				76.0	23.8
146	KnightLight	4970	⬆ 1		⬇ 1					100.0
147	nmbarek_team	4942	⬆ 2	⬆ 1					100.0
148	DePaul MAT 141	4934	⬆ 19	⬆ 1					99.6	0.4
149	Crunching@EVGA	4888	⬆ 2	⬆ 1					99.7	0.3
150	YESHUA IS THE MESSIAH	4648	⬆ 9	⬆ 1					99.2	0.8
151	Phi Kappa Theta	4603	⬆ 4	⬆ 3					72.3	27.7
152	Team Norway	4373	⬇ 23	⬇ 12			75.2			5.9	18.4
153	Noam Karni Team	3703	⬆ 1						85.3	14.7
154	GIMPS.Hong Kong	2906	⬆ 12	⬆ 5	⬆ 1		1.9		55.5	42.6
155	Olympic College	2823	⬆ 1	⬆ 1	⬆ 1					100.0
156	Politeknik Banting, Selangor	2784	⬇ 10	⬇ 1	⬆ 1		71.5		28.4	0.1
157	Pi Rho	2499	⬆ 11	⬆ 3	⬆ 1				67.1	32.9
158	GIMPSMalaysia	2394	⬆ 11	⬆ 3	⬆ 1				66.8	33.2
159	CZAsTc	2288	⬆ 23	⬆ 3	⬆ 1				99.6	0.4
160	The Planetary Society	2237	⬆ 61	⬆ 7	⬆ 1				76.1	23.9
161	Team Austria	2199	⬇ 31	⬆ 2	⬆ 1		12.8	9.5	77.7
162	GIMPS_KS	2199	⬆ 9	⬆ 2	⬆ 1				36.5	62.0	1.4
163	Hyperion	1979	⬇ 23	⬇ 6	⬆ 2	⬆ 1				27.7
164	SETI.USA	1964	⬆ 57	⬆ 31	⬆ 2	⬆ 1			43.3	56.7
165	The Prime Pioneers	1919	⬆ 7	⬆ 3	⬆ 2	⬆ 1		100.0
166	VRS_SE	1846	⬆ 4	⬆ 3	⬆ 2	⬆ 1			85.4	14.6
167	zeit	1826	⬇ 7	⬇ 1	⬇ 3	⬇ 4	15.0			85.0
168	Elisabeth-von-Thadden-Schule	1788	⬇ 24	⬇ 10	⬆ 2				86.5	13.5
169	hreid	1575	⬆ 7	⬆ 3	⬆ 3				100.0
170	Obsidian	1564	⬆ 9	⬆ 4	⬇ 1					100.0
171	cr_colorado	1549	⬆ 7	⬆ 2	⬆ 2					100.0
172	I Love Canadian Natural Resources	1542	⬆ 8	⬆ 8	⬆ 2					100.0
173	MES-Team	1451	⬇ 70	⬇ 51	⬇ 19		36.0	12.6		51.3
174	Amserver	1066	⬆ 47	⬆ 2	⬆ 2		100.0
175	youngfun429	1037	⬆ 6	⬆ 3	⬆ 3				75.3	24.7
176	Kabylie	1016	⬇ 12	⬇ 11	⬆ 3		25.6			74.4
177	Therian Primes	1007	⬆ 11	⬆ 4	⬆ 3			14.6		52.4	33.0
178	Furry Primes	957	⬇ 15	⬇ 8	⬇ 3		46.3			53.7
179	Team Bulgaria	905	⬆ 39	⬆ 3	⬆ 2				95.0		5.0
180	Catalunya Team	869	⬆ 41	⬆ 35	⬆ 4				98.1	1.9
181	RafaÅ‚ HacuÅ›	860	⬆ 10	⬆ 3	⬆ 1				100.0
182	Czech National Team	860	⬆ 7	⬆ 1	⬆ 1				96.4	0.5	1.8
183	The Court of the Math Jester	854	⬆ 38	⬆ 32	⬆ 2				100.0
184	UMD University of Maryland Prime Hunters	850	⬆ 37	⬆ 31	⬆ 2				100.0
185	AWC	801	⬆ 7		⬆ 2				100.0
186	San Francisco	795	⬇ 11	⬇ 15	⬇ 15				100.0
187	GIMPS Asturias	794	⬆ 7	⬇ 1	⬆ 1				99.6	0.4
188	Weatopians	793	⬆ 7	⬇ 1	⬆ 1				99.7	0.3
189	SGDynamo Dresden	579	⬆ 8	⬇ 1	⬆ 2		100.0
190	Join Us 😈	577	⬇ 6	⬇ 13	⬇ 13		39.0			61.0
191	Azerbaijan	565	⬆ 30	⬆ 24	⬆ 25					98.4	1.6
192	PARG team	563	⬆ 11	⬇ 3						96.2	3.8
193	PrimeObsession	539	⬆ 5	⬇ 3		⬆ 1				100.0
194	3DCenter.org	526	⬇ 20	⬇ 19	⬇ 4	⬇ 1					100.0
195	GIMPS.Romania	422	⬆ 5	⬇ 4	⬇ 1				100.0
196	LIKN	285	⬆ 25	⬇ 4	⬇ 1					99.9
197	Denmark	277	⬆ 24	⬆ 18	⬇ 1					100.0
198	Yurunago	276	⬆ 6	⬇ 5	⬇ 1					100.0
199	Vegan	275	⬆ 7	⬇ 5	⬇ 1					100.0
200	alan145	268	⬆ 1	⬆ 12	⬆ 7		62.3				37.7
201	Byberg Nordic Prime	265	⬆ 6	⬇ 5	⬇ 2					100.0
202	FDY	265	⬆ 6	⬇ 5	⬇ 2					100.0
203	TunisianTeam	258	⬇ 17	⬇ 24	⬇ 2					100.0
204	Subprime Searches	256	⬇ 19	⬇ 6	⬇ 2					100.0
205	GIMPS Hams	253	⬆ 5	⬇ 5	⬇ 2			100.0
206	WSU Cougars	247	⬇ 23	⬇ 4	⬇ 2					100.0
207	miiro	240	⬆ 4	⬇ 4	⬇ 2		100.0
208	DividerHunt	221	⬆ 4	⬇ 3	⬇ 2		100.0
209	/r/counting	184	⬆ 5	⬇ 1	⬇ 1
210	His Dark Materials	166	⬇ 14	⬇ 11	⬇ 1						99.8
211	GIMPS_IOM	153	⬇ 24	⬇ 5	⬇ 1		100.0
212	Team Dominik Radler	137	⬇ 7	⬇ 3	⬇ 1		100.0
213	GIMPS.Peace	122	⬆ 2	⬇ 3	⬇ 1		44.7	55.3
214	sannerud.com	98	⬆ 3	⬇ 3	⬇ 1		47.6				10.9	41.5
215	PROMYS	23	⬆ 4	⬇ 2	⬇ 1						100.0
216	yfinder	1	⬆ 4	⬇ 2	⬇ 1					100.0