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 2026-08-30 15:00 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	172435383	⬆ 3	⬆ 2	⬆ 1			99.3		0.6
2	Slovakia	156541986	⬇ 1		⬆ 1		0.3	88.4	0.4	0.1	10.8
3	PrimeNet	150736768	⬆ 2	⬆ 1	⬆ 1		0.2	80.1	0.6	0.8	18.3
4	GIMPS.Russia	145882859	⬇ 2	⬇ 3	⬇ 3		0.9	0.1	0.3		98.7
5	POLAND	111413106	⬇ 2				0.9	96.0	0.4	0.1	2.6
6	-Too many Ones-	66588566						78.0			21.9
7	Team#1	23007900	⬆ 1				1.9	16.6	44.1	35.5	2.0
8	GIMPSChina	20471487	⬇ 1				46.4	31.6	4.4	0.7	16.8
9	Numberphile	12631083	⬆ 8				3.4	18.1	4.8	1.7	72.0
10	UCM-curtisc	12619782							99.2	0.8
11	Team-Deutschland	10916772					2.1	67.0	1.3	0.2	29.2
12	More Power!!!	9080952					18.3	73.6	3.3	3.0	1.8
13	Porta Kruse	6326575	⬆ 2	⬆ 1	⬆ 1		2.0	0.5			91.2	6.2
14	TeamUK	6313171		⬇ 1	⬇ 1		45.7	2.5	21.1	1.9	28.8
15	GW's legions	6140136	⬇ 6				0.1	2.0	89.3	4.1	4.5
16	GPU to 72	5972946					43.7	37.6	1.8	3.1	13.6
17	tsc	3726599	⬆ 2	⬆ 2		⬆ 2	57.1	1.9	1.0	0.3	39.8
18	One Man Team	3655445	⬇ 5	⬇ 1		⬇ 1		98.8	1.2
19	UW Eau Claire	3654141	⬇ 1	⬇ 1		⬇ 1	91.1		6.5	2.4
20	UKRAINE	3034226	⬆ 1				4.5	4.8	82.5	8.2
21	Argentina	2563445	⬇ 1				92.1		7.9
22	Wikipedia	1879599	⬆ 1				56.6	35.5	4.8	2.0	0.9
23	GIMPS.Korea	1735048	⬆ 3				87.9	4.5	3.5	0.8	3.2
24	GIMPS.Occitania	1186182	⬆ 1					4.5				95.5
25	Dutch Power Cows	1092795	⬆ 2	⬆ 2			37.6	10.1	1.5	2.3	48.4
26	404 - "Primes not Found"	979602	⬆ 13	⬆ 3			92.6		7.3	0.1
27	Swedes Of Primes	886829	⬇ 3	⬇ 2			1.9	76.9	17.7	3.5
28	MBAi.Cloud	824154							99.9	0.1
29	MATHSareREAL	578886		⬆ 1	⬆ 1		96.2		2.5	1.3
30	SpongeBob SquarePants	536557	⬇ 8	⬇ 4	⬇ 1			30.7	64.9	4.5
31	GIMPS.USA	496524	⬆ 10	⬆ 1	⬆ 1		32.5	43.0	17.9	3.9	2.2
32	Buhr	475514		⬇ 1	⬇ 1		44.3	6.1	16.6	5.6	27.5
33	Colorado School of Mines	419504	⬆ 4				82.8		15.8	1.3
34	citizenscience.ru	378592	⬇ 3				86.0	1.3	7.9	1.1	3.8
35	MOXA	358007	⬆ 1	⬆ 2			99.6		0.4
36	Rechenkraft.net	346545	⬇ 2				0.1	51.4	4.8	7.2	36.4
37	Terry Kim Team	313785	⬇ 2	⬇ 2			95.0		3.6	0.9
38	S485122	301293		⬆ 1	⬆ 1			95.1		4.9
39	GIMPS.Japan	301172	⬇ 6	⬇ 1	⬇ 1		44.7		40.1	14.9	0.3
40	nranks	263531	⬆ 2				28.3	0.4	2.7	0.3	68.2
41	YahsTeam	226927	⬆ 2				86.2		11.1	2.6
42	NanJing Tech	216777	⬆ 4				24.2		72.4	3.4
43	GIMPS Team Philippines	202331	⬆ 2				47.9		11.0	2.2	34.4
44	NerdyGirls	191367		⬆ 1				44.4	4.6	51.0
45	Canada	168789	⬆ 3	⬆ 1			8.4	1.0	65.5	25.2
46	Team Tartan	162608	⬆ 1	⬆ 2					77.8	22.2
47	GIMPS.Portugal	154864	⬆ 10	⬆ 3			49.2	49.3		1.4
48	IOTA	149344	⬆ 8	⬆ 5			93.8		4.5	1.7
49	GIMPS.NZ	138245	⬆ 1	⬆ 2	⬆ 1	⬆ 1	79.5	0.2	11.5	8.8	0.1
50	OverclockerAustralia	138216	⬇ 1	⬇ 1	⬇ 1	⬇ 1	59.4		15.2	20.4
51	Team China	131871		⬆ 1			0.1		99.6	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	115400	⬇ 24	⬇ 7	⬆ 3			39.8	49.6	6.1	4.4
55	VIPR	110600	⬆ 21	⬆ 1	⬇ 1		95.7		2.9	1.3
56	UIUC	97937	⬆ 6	⬆ 2					66.8	33.2
57	AMD Users	94673	⬆ 2		⬆ 1		49.3	0.6	4.2	45.5	0.4
58	Wile E. Coyote	87137	⬆ 8	⬆ 2	⬆ 1				74.0	0.1	25.9
59	SASAKI	80664	⬇ 5		⬆ 1		100.0
60	GIMPS China	74458	⬇ 2	⬆ 6	⬆ 2	⬆ 1	82.8		10.5	0.1	6.4
61	Smoke-it	73195	⬇ 21	⬇ 17	⬇ 6	⬇ 1	90.8	9.2
62	NUST	73036	⬆ 46	⬆ 11	⬆ 4	⬆ 1	56.4	41.8	1.2	0.6
63	Eratosthenes Sieve	72961	⬆ 4			⬇ 1	0.8		94.1	5.1
64	Net-Work	72411					6.2	1.0			81.5
65	SHADO	72177	⬇ 2	⬇ 4					61.3	18.3	12.6	1.1
66	Wisconsin	71925	⬇ 5	⬇ 4	⬇ 5		29.2		36.2	34.6
67	S147127	67994	⬆ 5				34.4		27.1	38.4
68	Team_Italia	66279	⬆ 7	⬆ 1			3.2	0.5	66.4	21.7	4.7	1.8
69	Esperanto	64195	⬇ 1	⬇ 1				25.8	5.1	69.2
70	ComputerraRU	63628	⬆ 7	⬆ 8	⬆ 3		46.1		50.0	3.9
71	ParadoxZ Commando	63041		⬇ 1	⬇ 1				71.7	28.3
72	Cap'n Entropy's Cavalcade of Wonderment	51873	⬇ 7	⬇ 1	⬇ 1		70.8	9.2	15.9	4.1
73	EgyptianPolymaths	51541	⬇ 3	⬆ 2	⬆ 1			83.7
74	Team Israel	50253	⬇ 1	⬇ 2	⬇ 2		96.3		3.2	0.5
75	Hungary	46109	⬇ 1	⬇ 1					5.3	1.1	93.6
76	AJ	45414	⬇ 7	⬆ 1					74.1	25.9
77	Brno University of Technology	44893	⬆ 1	⬆ 2					79.2	20.8
78	Team Belgium	37464	⬆ 2	⬆ 2			1.4	2.6	31.9	25.2	39.0
79	Turku	36285	⬆ 4	⬆ 3					100.0
80	Aiblspitz	36272	⬆ 18	⬆ 9	⬆ 1			93.2		6.8
81	huskers-gimps	35840	⬆ 3		⬇ 1				75.0	25.0
82	Debian	33368	⬆ 4	⬆ 4	⬆ 2				98.2	1.8
83	Hermessz	32677	⬆ 4	⬆ 2	⬆ 3		63.8		33.8	2.4
84	Team Viet Nam	32398	⬇ 3		⬇ 1		37.7		36.2	26.2
85	GIMPS.NEO	31922	⬇ 6	⬇ 2					83.6	16.4
86	Team H	31793	⬇ 1	⬆ 1	⬆ 1	⬆ 1	14.6		84.9	0.6
87	ᕙ(⇀‸↼‶)ᕗ	31555	⬆ 1	⬆ 1	⬆ 1	⬆ 1	0.7		98.9	0.4
88	BitMEX Research	30291	⬇ 28	⬇ 12	⬇ 6	⬇ 2			89.7	10.3
89	baraCUDA	29906		⬆ 2					100.0
90	MurrayInfoSys	29477	⬆ 4	⬆ 4	⬆ 2				68.2	31.8
91	The Fellowship of Infinity	28973	⬆ 2	⬆ 1	⬇ 1				99.5	0.5
92	HardOCP	26991	⬇ 10	⬇ 2	⬇ 1				72.4	27.6
93	Channel 4	26310	⬇ 1	⬆ 2					81.9	18.1
94	Small-Team-2000	24176	⬇ 4	⬆ 2	⬆ 1					100.0
95	Costa Rica	22939		⬇ 2	⬆ 1				79.6	19.9
96	socal_prime	22544	⬇ 5	⬆ 1	⬆ 1				73.2	26.6	0.1
97	Georgia Tech	20319		⬆ 1	⬆ 1				100.0
98	Com Systems (RU)	19839	⬆ 8	⬆ 4	⬆ 1				71.4	28.6
99	randomteam	19223	⬇ 44	⬇ 34	⬇ 5						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	16959	⬇ 2	⬇ 2					69.0	31.0
103	PrimitiveRootsCircle	15803	⬇ 2	⬆ 1			9.0		60.2	28.2	2.5
104	RobotechResearch	15785	⬆ 10	⬆ 3	⬆ 1				50.5	49.5
105	SpartaAlumni	15291	⬇ 2		⬇ 1				77.3	22.7
106	TurkishMath	14513	⬆ 7						94.6	5.4
107	Team Retired	14139	⬇ 8	⬇ 6					21.9	9.5
108	moeses	12644	⬆ 2	⬆ 3					98.9	1.1
109	Mensa	11990	⬆ 16	⬆ 23	⬆ 9				61.0	39.0
110	Quantus	11402	⬆ 2	⬇ 1	⬇ 1		10.6		13.9	20.1		55.4
111	Portland State University	11367	⬆ 5	⬆ 1	⬇ 1			38.7	58.6	2.6
112	FREE ROBUX	10852	⬆ 7	⬆ 1					100.0
113	Team Slovenia	10718	⬆ 2	⬆ 5					65.6	34.4
114	Royal Military College of Canada	10691	⬆ 6				89.7		7.9	2.4
115	Team Finland	10626	⬆ 2				1.7		95.8		2.5
116	Spain	10361	⬇ 9	⬇ 8	⬇ 5				75.7	24.3
117	Prime Rib	9904	⬆ 17		⬇ 1				98.1	1.9
118	Nerdfighters for Mersenne Primes	9775	⬇ 7	⬇ 2	⬇ 1				97.1	2.9
119	University of Waterloo	9729	⬆ 9						94.4	5.6
120	Syntony	9339	⬆ 2							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	8753	⬆ 3	⬇ 1	⬇ 2				89.5	10.4
124	math.auth.gr	8551	⬆ 7						100.0
125	The_Dude_Abides	8485	⬆ 28	⬆ 4	⬆ 1				29.4	51.8	1.2
126	Pavlicin	8407	⬆ 11	⬆ 1	⬆ 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	⬇ 1						99.0	1.0
132	Morocco	7097	⬆ 29	⬆ 9					58.0	42.0
133	FreeBSD	7074							67.7	32.3
134	GIMPS.Taiwan	7047	⬇ 11	⬆ 2					81.2	18.1	0.1
135	Server66	6758	⬆ 21	⬇ 12			100.0
136	FactorMania	6572	⬆ 2	⬆ 2				56.9			43.1
137	Abacus	6369	⬇ 1	⬇ 3					98.7	1.3
138	Granada	6094	⬇ 17	⬇ 3			31.2		26.1	42.7
139	Team Christensen	5873	⬆ 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	5542	⬆ 2	⬆ 9	⬆ 1				71.8	28.2
144	Korea.Prime	5520	⬆ 8	⬆ 1	⬇ 2				71.4	28.6
145	Brasil	5176	⬇ 5	⬇ 2	⬇ 2				76.2	23.7
146	KnightLight	4970	⬆ 1		⬇ 1					100.0
147	nmbarek_team	4942	⬆ 2	⬆ 1					100.0
148	DePaul MAT 141	4934	⬆ 11	⬆ 1					99.6	0.4
149	Crunching@EVGA	4888	⬆ 2	⬆ 1					99.7	0.3
150	YESHUA IS THE MESSIAH	4648	⬆ 8	⬆ 1					99.2	0.8
151	Phi Kappa Theta	4603	⬆ 12	⬆ 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	⬆ 13	⬆ 4			1.9		55.5	42.6
155	Olympic College	2823		⬆ 1						100.0
156	SETI.USA	2822	⬆ 65	⬆ 40	⬆ 10				60.4	39.6
157	Politeknik Banting, Selangor	2671	⬇ 11	⬇ 2	⬇ 1		70.3		29.6	0.1
158	Pi Rho	2499	⬆ 10	⬆ 2					67.1	32.9
159	GIMPSMalaysia	2394	⬆ 10	⬆ 2					66.8	33.2
160	CZAsTc	2288	⬆ 21	⬆ 2					99.6	0.4
161	The Planetary Society	2237	⬆ 60	⬆ 2					76.1	23.9
162	Team Austria	2199	⬇ 27	⬆ 2			12.8	9.5	77.7
163	GIMPS_KS	2199	⬆ 8	⬆ 2					36.5	62.0	1.4
164	Hyperion	1979	⬇ 23	⬇ 7	⬆ 1					27.7
165	The Prime Pioneers	1919	⬆ 7	⬆ 3	⬆ 2			100.0
166	zeit	1826	⬇ 1	⬆ 1	⬇ 2		15.0			85.0
167	Elisabeth-von-Thadden-Schule	1788	⬇ 23	⬇ 8	⬆ 3				86.5	13.5
168	hreid	1575	⬆ 8	⬆ 4	⬆ 4				100.0
169	Obsidian	1564	⬆ 9	⬆ 5						100.0
170	cr_colorado	1549	⬆ 7	⬆ 3	⬆ 3					100.0
171	I Love Canadian Natural Resources	1542	⬆ 8	⬆ 9	⬆ 3					100.0
172	MES-Team	1451	⬇ 70	⬇ 47	⬇ 15		36.0	12.6		51.3
173	Vegan	1118	⬆ 33	⬆ 22	⬆ 26				75.4	24.6
174	Amserver	1066	⬆ 47	⬆ 2	⬆ 2		100.0
175	VRS_SE	1056	⬇ 5	⬇ 6	⬇ 7				74.5	25.5
176	youngfun429	1037	⬆ 4	⬆ 2	⬆ 2				75.3	24.7
177	Therian Primes	1007	⬆ 9	⬆ 4	⬆ 3	⬆ 1		14.6		52.4	33.0
178	Kabylie	1000	⬇ 14	⬇ 12	⬆ 1	⬇ 1	24.4			75.6
179	Furry Primes	911	⬇ 17	⬇ 9	⬇ 4		43.6			56.4
180	Team Bulgaria	905	⬆ 38	⬆ 2	⬆ 1				95.0		5.0
181	Catalunya Team	869	⬆ 40	⬆ 34	⬆ 1				98.1	1.9
182	RafaÅ‚ HacuÅ›	860	⬆ 8	⬆ 2	⬆ 1				100.0
183	Czech National Team	860	⬆ 5		⬆ 1				96.4	0.5	1.8
184	The Court of the Math Jester	854	⬆ 37	⬆ 31	⬆ 1				100.0
185	UMD University of Maryland Prime Hunters	850	⬆ 36		⬆ 1				100.0
186	AWC	801	⬆ 5		⬆ 1				100.0
187	San Francisco	795	⬇ 12	⬇ 16	⬇ 16				100.0
188	GIMPS Asturias	794	⬆ 5	⬇ 1					99.6	0.4
189	Weatopians	793	⬆ 5	⬇ 1					99.7	0.3
190	Join Us 😈	577	⬇ 7	⬇ 13	⬇ 13		39.0			61.0
191	Azerbaijan	568	⬆ 30	⬆ 24	⬆ 6					98.4	1.6
192	PARG team	563	⬆ 11	⬇ 2						96.2	3.8
193	SGDynamo Dresden	549	⬆ 4	⬇ 4	⬇ 2		100.0
194	PrimeObsession	539	⬆ 4	⬇ 3	⬇ 1					100.0
195	3DCenter.org	499	⬇ 21	⬇ 20	⬇ 5						100.0
196	GIMPS.Romania	422	⬆ 4	⬇ 4	⬇ 2				100.0
197	alan145	367	⬆ 4	⬆ 15	⬆ 10	⬆ 3	45.4				54.6
198	LIKN	285	⬆ 23	⬇ 5	⬇ 3	⬇ 1				99.9
199	Denmark	277	⬆ 22	⬆ 16	⬇ 3	⬇ 1				100.0
200	Yurunago	276	⬆ 4	⬇ 6	⬇ 2	⬇ 1				100.0
201	Byberg Nordic Prime	265	⬆ 6	⬇ 4	⬇ 1					100.0
202	FDY	265	⬆ 6	⬇ 4	⬇ 1					100.0
203	TunisianTeam	258	⬇ 18	⬇ 24	⬇ 1					100.0
204	Subprime Searches	256	⬇ 20	⬇ 5	⬇ 1					100.0
205	GIMPS Hams	253	⬆ 5	⬇ 5	⬇ 1			100.0
206	WSU Cougars	247	⬇ 24	⬇ 4	⬇ 1					100.0
207	miiro	240	⬆ 4	⬇ 4	⬇ 1		100.0
208	DividerHunt	221	⬆ 4	⬇ 3			100.0
209	/r/counting	184	⬆ 5	⬇ 1
210	GIMPS_IOM	153	⬇ 23	⬇ 4	⬆ 1	⬆ 1	100.0
211	His Dark Materials	151	⬇ 15	⬇ 10	⬇ 1	⬇ 1					99.8
212	Team Dominik Radler	137	⬇ 7	⬇ 3			100.0
213	GIMPS.Peace	122	⬆ 2	⬇ 3			44.7	55.3
214	sannerud.com	98	⬆ 3	⬇ 3			47.6				10.9	41.5
215	PROMYS	23	⬆ 4	⬇ 2							100.0
216	yfinder	1	⬆ 4	⬇ 2						100.0