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 2026-08-24 12:00 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	GIMPS.Russia	206237110	⬆ 1	⬆ 1			0.6		0.2		99.1
2	Ars Technica Team Prime Rib	168481435	⬆ 2	⬆ 2				99.3		0.7
3	Slovakia	156793050	⬇ 2	⬇ 2			0.3	88.4	0.4	0.1	10.8
4	PrimeNet	150545872	⬆ 1	⬇ 1			0.2	80.0	0.6	0.8	18.4
5	POLAND	111322816	⬇ 2				1.0	95.9	0.4	0.1	2.6
6	-Too many Ones-	66473358						78.0			22.0
7	Team#1	23007900	⬆ 1				1.9	16.6	44.1	35.5	2.0
8	GIMPSChina	20610289	⬇ 1				46.8	31.7	4.3	0.7	16.4
9	Numberphile	12622460	⬆ 8				3.4	18.1	4.8	1.7	72.0
10	UCM-curtisc	12494167							99.2	0.8
11	Team-Deutschland	11193330					2.1	65.3	1.2	0.2	31.0
12	More Power!!!	9185837					18.3	73.8	3.2	3.0	1.7
13	TeamUK	6413868	⬆ 1				45.5	2.5	21.5	1.8	28.5
14	Porta Kruse	6331299	⬆ 1				2.0	0.5			91.2	6.2
15	GW's legions	6096256	⬇ 6				0.1	1.9	89.2	4.1	4.6
16	GPU to 72	5890356					44.6	36.4	1.7	3.2	14.0
17	tsc	3715675	⬆ 2	⬆ 2	⬆ 2		56.8	2.2	0.9	0.3	39.8
18	One Man Team	3656231	⬇ 5	⬇ 1	⬇ 1			98.7	1.3
19	UW Eau Claire	3654141	⬇ 1	⬇ 1	⬇ 1		91.1		6.5	2.4
20	UKRAINE	3000610	⬆ 1				5.0	4.8	81.9	8.4
21	Argentina	2563445	⬇ 1				92.1		7.9
22	Wikipedia	1891592	⬆ 1				56.9	35.3	4.8	2.0	0.9
23	GIMPS.Korea	1700502	⬆ 3				87.6	4.6	3.6	0.8	3.3
24	GIMPS.Occitania	1186182	⬆ 1					4.5				95.5
25	Dutch Power Cows	1027545	⬆ 2	⬆ 2	⬆ 3		41.9	10.8	1.5	2.5	43.2
26	404 - "Primes not Found"	967901	⬆ 13	⬆ 3	⬇ 1		93.4		6.5	0.1
27	Swedes Of Primes	915717	⬇ 3	⬇ 1	⬇ 1		1.7	77.1	17.7	3.4
28	MBAi.Cloud	820333			⬇ 1				99.9	0.1
29	SpongeBob SquarePants	649860	⬇ 7	⬇ 4				30.6	65.2	4.2
30	MATHSareREAL	578886					96.2		2.5	1.3
31	Buhr	478269	⬆ 1				45.0	5.9	16.6	5.6	26.9
32	GIMPS.USA	476840	⬆ 10				30.5	44.8	18.0	4.0	2.3
33	Colorado School of Mines	417002	⬆ 4	⬆ 1			83.3		15.4	1.3
34	citizenscience.ru	371479	⬇ 3	⬇ 1			85.2	1.5	8.2	1.1	4.0
35	MOXA	357864	⬆ 1	⬆ 2			99.6		0.4
36	Rechenkraft.net	348275	⬇ 2	⬇ 1			0.1	51.5	4.8	7.2	36.3
37	Terry Kim Team	328072	⬇ 2	⬇ 1			95.2		3.5	0.9
38	S485122	301702		⬆ 1	⬆ 1	⬆ 1		95.0		5.0
39	GIMPS.Japan	301687	⬇ 6	⬇ 1	⬇ 1	⬇ 1	44.6		40.2	14.8	0.3
40	nranks	263405	⬆ 1				28.3	0.4	2.7	0.3	68.2
41	YahsTeam	230342	⬆ 2				86.5		11.0	2.6
42	NanJing Tech	216777	⬆ 4	⬆ 1			24.2		72.4	3.4
43	GIMPS Team Philippines	202332	⬆ 2	⬆ 2			47.9		11.0	2.2	34.4
44	NerdyGirls	187248		⬆ 2				45.3	5.2	49.5
45	Canada	169847	⬆ 3	⬆ 2			8.3	1.0	65.5	25.2
46	Team Tartan	164034	⬆ 1	⬆ 2					77.6	22.4
47	GIMPS.Portugal	152941	⬆ 11	⬆ 5			48.5	50.0		1.5
48	IOTA	147087	⬆ 9	⬆ 6	⬆ 1		93.7		4.6	1.7
49	OverclockerAustralia	145374			⬇ 1		60.4		14.5	19.7
50	GIMPS.NZ	138830					78.8	0.2	12.0	8.9	0.1
51	Team China	130970			⬆ 1				99.7	0.3
52	Unicamp	120517		⬆ 1	⬆ 1		69.3		28.1	2.5
53	GIMPS.France	117218		⬆ 2	⬆ 1		9.5	68.4	4.9	5.3	11.8
54	VIPR	110095	⬆ 24	⬆ 2	⬆ 1		95.4		2.9	1.5
55	Smoke-it	100469	⬇ 15	⬇ 13	⬇ 4		91.8	8.2
56	UIUC	97121	⬆ 6	⬆ 2	⬆ 1				67.4	32.6
57	unRAID	95415	⬇ 28	⬇ 13	⬇ 1			27.7	64.0	7.4	0.8
58	AMD Users	94403	⬆ 2	⬇ 1			49.4	0.6	5.1	44.5	0.4
59	Wile E. Coyote	85507	⬆ 8	⬆ 1					74.4	0.1	25.4
60	SASAKI	82114	⬇ 5	⬇ 1			100.0
61	Wisconsin	73786		⬆ 1			29.6		36.3	34.1
62	GIMPS China	73188	⬇ 6	⬆ 1			82.5		10.7	0.1	6.5
63	Eratosthenes Sieve	72912	⬆ 3	⬆ 1	⬆ 1	⬆ 2	0.8		94.1	5.1
64	Net-Work	72830		⬆ 1	⬆ 1	⬇ 1	6.1	1.0			82.0
65	SHADO	72689		⬇ 4	⬇ 2	⬇ 1			60.9	18.9	12.5	1.1
66	NUST	71354	⬆ 41	⬆ 11	⬆ 1		55.4	42.8	1.2	0.6
67	S147127	67818	⬆ 5		⬇ 1		33.9		27.2	38.9
68	Team_Italia	65617	⬆ 7	⬆ 1			3.1	0.5	64.6	23.7	4.5	1.9
69	Esperanto	64056		⬇ 1				25.8	3.8	70.4
70	ParadoxZ Commando	61949	⬆ 1						71.7	28.3
71	ComputerraRU	55373	⬆ 6	⬆ 8	⬆ 4	⬆ 2	36.7		58.8	4.5
72	Cap'n Entropy's Cavalcade of Wonderment	52710	⬇ 9	⬇ 1	⬇ 1	⬇ 1	71.2	9.1	15.7	4.0
73	Team Israel	52172		⬇ 1	⬇ 1	⬇ 1	96.5		3.0	0.5
74	EgyptianPolymaths	50900	⬇ 6	⬆ 1				84.8
75	Hungary	48786	⬇ 1	⬇ 1	⬇ 2				5.0	1.0	93.9
76	AJ	45414	⬇ 6						74.1	25.9
77	Brno University of Technology	44080	⬇ 1	⬆ 1					78.9	21.1
78	Team Belgium	37715	⬆ 2	⬆ 2	⬆ 1		1.4	2.6	31.6	25.7	38.7
79	Turku	36285	⬆ 3	⬆ 3	⬆ 3				100.0
80	huskers-gimps	35839	⬆ 3	⬆ 1	⬆ 1				75.0	25.0
81	Aiblspitz	35610	⬆ 21	⬆ 10	⬆ 3			93.1		6.9
82	BitMEX Research	34930	⬇ 23	⬇ 9	⬇ 4				91.1	8.9
83	Team Viet Nam	33992	⬇ 2	⬆ 1	⬆ 2		35.9		39.1	24.9
84	Debian	33368	⬆ 2	⬆ 1	⬆ 2				98.2	1.8
85	GIMPS.NEO	32940	⬇ 6	⬇ 2	⬇ 2				83.3	16.7
86	Hermessz	32610	⬆ 2		⬆ 1		63.7		33.8	2.4
87	Team H	31729	⬇ 2		⬆ 1		14.5		84.9	0.6
88	ᕙ(⇀‸↼‶)ᕗ	31555	⬇ 1	⬆ 1	⬆ 1		0.7		98.9	0.4
89	baraCUDA	29906		⬆ 1	⬆ 1				100.0
90	The Fellowship of Infinity	28951	⬆ 2	⬆ 3	⬆ 1				99.5	0.5
91	MurrayInfoSys	28387	⬆ 3	⬆ 1	⬆ 2	⬆ 1			67.9	32.1
92	HardOCP	26994	⬇ 8	⬇ 4		⬇ 1			72.4	27.6
93	Channel 4	26315		⬆ 1	⬆ 2				81.8	18.1
94	Small-Team-2000	25251	⬇ 4	⬆ 2		⬆ 1			3.1	96.9
95	Costa Rica	22851			⬆ 2	⬆ 1			79.6	20.1
96	socal_prime	22762	⬇ 5	⬆ 1		⬆ 1			72.5	27.3	0.1
97	Georgia Tech	20319		⬆ 1	⬆ 1	⬆ 1			100.0
98	randomteam	19223	⬇ 44	⬇ 32	⬇ 18	⬇ 4					100.0
99	Com Systems (RU)	18708	⬆ 9	⬆ 3					71.2	28.8
100	LimePrime	17857	⬆ 5	⬇ 1				0.9	88.8	10.4
101	GIMPS Romania	17420	⬆ 2	⬆ 2			73.8		23.2	3.0
102	A Single Engineer	16947	⬇ 3	⬇ 1					73.6	26.4
103	PrimitiveRootsCircle	15561	⬆ 1	⬆ 1	⬆ 1		9.2		61.2	26.9	2.7
104	SpartaAlumni	15550	⬇ 3	⬆ 1	⬇ 1				76.0	24.0
105	RobotechResearch	15521	⬆ 10	⬆ 2	⬆ 2				51.4	48.6
106	TurkishMath	15298	⬆ 8						94.9	5.1
107	Team Retired	15260	⬇ 9	⬇ 7	⬇ 2				25.5	10.4
108	moeses	13414	⬆ 2	⬆ 1					99.0	1.0
109	Quantus	12170	⬆ 3	⬆ 1			10.0		13.0	25.1		51.9
110	Portland State University	11441	⬆ 7	⬆ 2	⬆ 5			39.1	58.3	2.6
111	Spain	11132	⬇ 5	⬇ 3	⬇ 1				70.5	29.5
112	FREE ROBUX	10852	⬆ 7	⬆ 1	⬇ 1				100.0
113	Team Slovenia	10722	⬆ 3	⬆ 5					65.6	34.4
114	Royal Military College of Canada	10691	⬆ 6				89.7		7.9	2.4
115	Team Finland	10589	⬇ 2		⬆ 1		1.3		96.2		2.5
116	Mensa	10025	⬆ 10	⬆ 14	⬆ 9	⬆ 2			64.4	35.6
117	Prime Rib	9929	⬆ 19	⬆ 14	⬇ 5	⬇ 1			97.9	2.1
118	Nerdfighters for Mersenne Primes	9775	⬇ 7	⬇ 2		⬇ 1			97.1	2.9
119	University of Waterloo	9729	⬆ 11	⬇ 2	⬆ 3				94.4	5.6
120	Syntony	9597	⬆ 2	⬇ 1	⬇ 1					100.0
121	Shaffer's Studio	9534	⬆ 6	⬆ 1	⬇ 1				90.3	9.6
122	LTT fans	9056	⬇ 26	⬇ 1	⬇ 1		92.5				7.5
123	Ozzie Prime	8796	⬇ 14	⬇ 12	⬇ 6				27.3	18.2		54.5
124	math.auth.gr	8551	⬆ 9	⬇ 1					100.0
125	The_Dude_Abides	8424	⬆ 29	⬆ 1	⬆ 3	⬆ 1			29.6	52.2	1.2
126	Pavlicin	8407	⬆ 15	⬇ 1	⬆ 1	⬆ 1	79.7	0.1	20.2
127	SETI.Germany	8361	⬇ 9		⬇ 4	⬆ 1		11.3		88.6
128	JiBoTeam	8217		⬇ 4	⬇ 2	⬇ 3				100.0
129	Die Zeitfinder	7985							90.3	9.7
130	Arpan Sen Labs	7748	⬆ 21	⬆ 7					58.0	42.0
131	Triangle	7147	⬆ 1	⬆ 4	⬆ 1				98.9	1.1
132	Morocco	7092	⬆ 31	⬆ 13	⬆ 1				58.1	41.9
133	FreeBSD	7074	⬆ 2	⬇ 1	⬆ 1				67.7	32.3
134	GIMPS.Taiwan	7047	⬇ 10	⬆ 2	⬆ 1				81.2	18.1	0.1
135	Server66	6758	⬆ 23	⬇ 7	⬇ 4		100.0
136	FactorMania	6572	⬆ 4	⬆ 2				56.9			43.1
137	Abacus	6370	⬇ 6	⬇ 3					98.6	1.3
138	Granada	6256	⬇ 17	⬇ 5			32.6		25.4	41.6
139	Team Christensen	6120	⬆ 3	⬆ 1	⬆ 1					100.0
140	irowiki	6087	⬇ 1	⬆ 1	⬇ 1					100.0
141	México mágico	5568	⬆ 2	⬆ 2					85.3	14.6
142	Korea.Prime	5520	⬆ 10	⬆ 2					71.4	28.6
143	Brasil	5432	⬇ 6	⬇ 1					72.6	27.3
144	Hong Kong GIMP	5279	⬆ 1	⬆ 8					75.4	24.6
145	KnightLight	4970	⬆ 2	⬆ 1						100.0
146	teamMALI	4955	⬆ 3	⬆ 1					79.6	20.4
147	nmbarek_team	4942	⬆ 1	⬆ 1					100.0
148	DePaul MAT 141	4934	⬆ 19	⬆ 1					99.6	0.4
149	Crunching@EVGA	4888	⬆ 1	⬆ 1					99.7	0.3
150	YESHUA IS THE MESSIAH	4648	⬆ 9	⬆ 1					99.2	0.8
151	Phi Kappa Theta	4603	⬆ 5	⬆ 3					72.3	27.7
152	Team Norway	4429	⬇ 27	⬇ 13			74.3			5.8	19.4
153	Noam Karni Team	3963	⬆ 2		⬆ 1				79.7	20.3
154	GIMPS.Hong Kong	2906	⬆ 12	⬆ 5	⬆ 3		1.9		55.5	42.6
155	Olympic College	2823	⬆ 2	⬆ 3	⬆ 1					100.0
156	Politeknik Banting, Selangor	2784	⬇ 10	⬆ 1	⬇ 1		71.5		28.4	0.1
157	Pi Rho	2499	⬆ 11	⬆ 3	⬆ 1	⬆ 1			67.1	32.9
158	GIMPSMalaysia	2394	⬆ 11	⬆ 3	⬆ 1	⬆ 1			66.8	33.2
159	CZAsTc	2288	⬆ 23	⬆ 4	⬆ 1	⬆ 1			99.6	0.4
160	The Planetary Society	2237	⬆ 64	⬆ 15	⬆ 1	⬆ 1			76.1	23.9
161	Team Austria	2199	⬇ 38	⬆ 3	⬆ 1	⬆ 1	12.8	9.5	77.7
162	GIMPS_KS	2199	⬆ 9	⬆ 3	⬆ 1	⬆ 1			36.5	62.0	1.4
163	zeit	2075	⬇ 2	⬇ 1	⬆ 2	⬆ 1	13.2			86.8
164	Hyperion	1982	⬇ 26	⬇ 8		⬆ 1				27.8
165	SETI.USA	1961	⬆ 59	⬆ 49	⬆ 1	⬆ 1			43.4	56.6
166	The Prime Pioneers	1919	⬆ 6	⬆ 1	⬆ 1	⬆ 1		100.0
167	VRS_SE	1846	⬆ 3	⬆ 1	⬆ 1	⬆ 1			85.4	14.6
168	Obsidian	1817	⬆ 12	⬆ 5	⬆ 1	⬆ 1				100.0
169	Elisabeth-von-Thadden-Schule	1788	⬇ 25	⬇ 14	⬆ 1	⬆ 1			86.5	13.5
170	San Francisco	1586	⬆ 6		⬆ 1	⬆ 1			100.0
171	hreid	1575	⬆ 6		⬆ 1	⬆ 1			100.0
172	cr_colorado	1549	⬆ 7		⬆ 1	⬆ 1				100.0
173	I Love Canadian Natural Resources	1542	⬆ 8	⬆ 7	⬆ 6	⬆ 1				100.0
174	MES-Team	1451	⬇ 74	⬇ 54	⬇ 21	⬇ 17	36.0	12.6		51.3
175	Furry Primes	1080	⬇ 15	⬇ 6	⬇ 1		52.4			47.6
176	Amserver	1066	⬆ 48		⬇ 1		100.0
177	youngfun429	1037	⬇ 2	⬆ 1	⬆ 1	⬆ 1			75.3	24.7
178	Join Us 😈	1034	⬆ 8	⬇ 1	⬇ 2	⬇ 1	66.0			34.0
179	Kabylie	1031	⬇ 15	⬇ 13	⬇ 2		26.7			73.3
180	Therian Primes	1007	⬆ 8	⬆ 1				14.6		52.4	33.0
181	Team Bulgaria	905	⬆ 39	⬆ 1					95.0		5.0
182	Catalunya Team	866	⬆ 42	⬆ 32	⬆ 32				98.5	1.5
183	RafaÅ‚ HacuÅ›	860	⬆ 8	⬆ 1	⬇ 1				100.0
184	Czech National Team	860	⬆ 5	⬇ 1	⬇ 1				96.4	0.5	1.8
185	The Court of the Math Jester	854	⬆ 39	⬆ 29	⬇ 1				100.0
186	UMD University of Maryland Prime Hunters	850	⬆ 38	⬆ 28	⬇ 1				100.0
187	AWC	801	⬆ 5	⬇ 2	⬇ 1				100.0
188	GIMPS Asturias	794	⬆ 6	⬇ 2					99.6	0.4
189	Weatopians	793	⬆ 6	⬇ 2					99.7	0.3
190	3DCenter.org	624	⬇ 16	⬇ 16	⬇ 3						100.0
191	SGDynamo Dresden	579	⬆ 7	⬇ 2			100.0
192	PARG team	563	⬆ 11	⬇ 2	⬇ 2					96.2	3.8
193	PrimeObsession	539	⬆ 6	⬇ 2	⬇ 1					100.0
194	GIMPS.Romania	422	⬆ 6	⬇ 2	⬇ 1				100.0
195	LIKN	285	⬆ 29	⬇ 1	⬇ 1					99.9
196	Denmark	277	⬆ 28	⬆ 18	⬆ 18					100.0
197	Azerbaijan	276	⬆ 27	⬆ 17	⬆ 17					100.0
198	Yurunago	276	⬆ 6	⬇ 5	⬇ 3					100.0
199	Vegan	275	⬆ 7	⬇ 4	⬇ 3					100.0
200	alan145	268	⬆ 1	⬆ 11	⬆ 5	⬆ 7	62.3				37.7
201	Byberg Nordic Prime	265	⬆ 6	⬇ 4	⬇ 4	⬇ 1				100.0
202	FDY	265	⬆ 6	⬇ 4	⬇ 4	⬇ 1				100.0
203	TunisianTeam	258	⬇ 16	⬇ 24	⬇ 4	⬇ 1				100.0
204	Subprime Searches	256	⬇ 20	⬇ 5	⬇ 4	⬇ 1				100.0
205	GIMPS Hams	253	⬆ 6	⬇ 5	⬇ 4	⬇ 1		100.0
206	WSU Cougars	247	⬇ 23	⬇ 5	⬇ 4	⬇ 1				100.0
207	miiro	240	⬆ 9	⬇ 5	⬇ 4	⬇ 1	100.0
208	DividerHunt	221	⬆ 4	⬇ 4	⬇ 4		100.0
209	/r/counting	184	⬆ 6	⬇ 2	⬇ 2
210	His Dark Materials	176	⬇ 13	⬇ 14	⬇ 4						99.8
211	GIMPS_IOM	153	⬇ 26	⬇ 6	⬇ 3		100.0
212	Team Dominik Radler	137	⬇ 7	⬇ 4	⬇ 3		100.0
213	GIMPS.Peace	122	⬆ 4	⬇ 4	⬇ 3		44.7	55.3
214	sannerud.com	108	⬆ 5	⬇ 4	⬇ 3		43.1				19.4	37.5
215	PROMYS	23	⬆ 6	⬇ 3	⬇ 3						100.0
216	yfinder	1	⬆ 6	⬇ 3	⬇ 3					100.0