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 2026-07-28 13:00 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	Slovakia	590498428	⬆ 1				0.1	97.5	0.1		2.3
2	GIMPS.Russia	296490462	⬇ 1				0.4		0.1		99.4
3	PrimeNet	149964128	⬆ 1	⬆ 1			0.2	80.0	0.6	0.8	18.4
4	Ars Technica Team Prime Rib	149033269	⬆ 1	⬇ 1				99.2		0.7
5	POLAND	112019785	⬇ 2				0.9	95.2	0.4	0.1	3.3
6	-Too many Ones-	64554078						77.5			22.5
7	Team#1	23007900	⬆ 5				1.9	16.6	44.1	35.5	2.0
8	GIMPSChina	19158770					53.9	26.5	4.8	0.7	14.0
9	Numberphile	12580284	⬆ 9	⬆ 4			3.2	17.9	4.9	1.7	72.2
10	UCM-curtisc	12194656	⬆ 3						99.2	0.8
11	Team-Deutschland	11976458					2.3	59.8	1.0	0.2	36.6
12	More Power!!!	10175179	⬆ 2				17.1	69.2	2.8	2.4	8.4
13	TeamUK	6652778	⬆ 2	⬆ 1			46.5	2.5	21.0	1.7	28.2
14	Porta Kruse	6350054	⬆ 2	⬆ 1			2.0	0.5			91.2	6.2
15	GW's legions	5995404	⬇ 5	⬇ 6	⬆ 1		0.1	2.0	88.8	4.0	5.0
16	GPU to 72	5531155	⬆ 1	⬆ 1	⬆ 1		48.6	31.8	1.2	3.3	15.0
17	One Man Team	3662382	⬇ 8	⬇ 1	⬇ 2			98.6	1.4
18	UW Eau Claire	3572753	⬆ 2	⬆ 1			90.9		6.6	2.5
19	tsc	3358933		⬇ 1			61.4	2.5	1.0	0.3	34.8
20	UKRAINE	2807216	⬆ 2	⬆ 1			7.0	5.5	78.2	9.3
21	Argentina	2563445	⬆ 3	⬇ 1			92.1		7.9
22	Wikipedia	1921725	⬆ 1				57.5	34.7	4.7	2.0	0.8
23	GIMPS.Korea	1540177	⬆ 7	⬆ 1			87.2	4.6	3.7	0.8	3.4
24	GIMPS.Occitania	1187005	⬆ 5	⬆ 1				4.4				95.6
25	SpongeBob SquarePants	1041842	⬇ 4	⬇ 2				30.3	64.4	5.3
26	Swedes Of Primes	1020004	⬆ 2				1.5	77.8	17.5	3.3
27	Dutch Power Cows	973051	⬇ 2				45.8	11.7	1.6	2.6	38.2
28	MBAi.Cloud	864546	⬆ 3						99.9	0.1
29	404 - "Primes not Found"	776552	⬆ 13	⬆ 2			91.8		8.2	0.1
30	MATHSareREAL	578886	⬆ 2	⬇ 1			96.2		2.5	1.3
31	Buhr	498263	⬆ 4	⬇ 1			49.6	5.3	16.5	5.3	23.3
32	GIMPS.USA	462557	⬇ 6	⬆ 1			31.3	46.2	15.8	3.9	2.4
33	Colorado School of Mines	406594	⬆ 6	⬆ 1	⬆ 1		85.5		13.2	1.3
34	citizenscience.ru	401638	⬇ 1	⬇ 2	⬇ 1		86.0	2.0	6.8	1.0	3.8	0.4
35	Terry Kim Team	365156	⬆ 2	⬆ 2	⬆ 1		95.6		3.3	0.7
36	Rechenkraft.net	364302			⬇ 1		0.2	50.9	6.1	7.1	35.7
37	MOXA	355577	⬇ 3	⬆ 1	⬆ 1		99.4		0.4	0.1
38	GIMPS.Japan	344052	⬇ 11	⬇ 3	⬇ 1		39.1		35.9	12.6	12.2
39	S485122	303984	⬇ 1	⬆ 1				95.1		4.9
40	nranks	282781	⬆ 6	⬆ 3			26.3	0.4	2.3	0.3	70.8
41	YahsTeam	240581		⬆ 1			87.4		10.2	2.5
42	NanJing Tech	216777	⬆ 8	⬆ 2	⬆ 2	⬆ 1	24.2		72.4	3.4
43	Smoke-it	211696	⬇ 3	⬇ 2		⬇ 1	90.9	7.5	1.5
44	GIMPS Team Philippines	205786		⬆ 1	⬆ 1		50.0		10.4	1.8	33.4
45	unRAID	193646	⬇ 38	⬇ 6	⬇ 3			60.0	35.7	3.7	0.6
46	NerdyGirls	191767	⬇ 1					44.3	4.6	51.1
47	Canada	180070					7.8	1.4	66.8	24.0
48	Team Tartan	169901							77.1	22.9
49	OverclockerAustralia	146456					60.0		14.4	20.2
50	GIMPS.NZ	137874	⬆ 1				79.5	0.2	10.9	9.3	0.1
51	GIMPS.Portugal	135261	⬆ 28	⬆ 6	⬆ 4		49.3	49.0		1.6
52	Team China	131461		⬇ 1	⬇ 1				99.7	0.3
53	IOTA	126145	⬆ 10	⬆ 1			94.7		4.0	1.3
54	Unicamp	124173	⬇ 1	⬇ 2	⬇ 2		67.3		29.2	3.5
55	GIMPS.France	116369		⬇ 2	⬇ 1		9.6	68.9	4.2	5.3	11.9
56	VIPR	106640	⬆ 31	⬆ 8			94.5		3.7	1.6
57	AMD Users	94626	⬆ 3	⬇ 1			49.3	0.6	8.4	41.3	0.4
58	UIUC	91881	⬆ 4						66.7	33.2
59	SASAKI	88358	⬇ 2	⬇ 4			100.0
60	Wile E. Coyote	82710	⬆ 7	⬆ 2	⬆ 1				75.7	0.4	23.8
61	SHADO	80540	⬆ 3		⬆ 1				63.0	18.5	11.3	1.2
62	Wisconsin	78066	⬇ 4	⬇ 2	⬇ 2		34.3		34.3	31.4
63	Eratosthenes Sieve	74993	⬆ 3	⬆ 2	⬆ 1	⬆ 1	0.7		95.4	3.8
64	Net-Work	74137	⬆ 1	⬇ 1	⬆ 1	⬆ 1	5.8	1.2			83.5
65	GIMPS China	74093	⬇ 11	⬇ 6	⬇ 2	⬇ 2	82.7		10.6	0.1	6.4
66	randomteam	71704	⬇ 23	⬆ 1							100.0
67	S147127	68707	⬆ 3	⬆ 3			33.2		23.4	43.4
68	Esperanto	64648		⬆ 1				26.0	3.7	70.3
69	Team_Italia	64493	⬆ 4	⬆ 5			2.9	0.5	65.7	23.1	3.6	2.3
70	ParadoxZ Commando	64417	⬆ 1	⬆ 2					72.5	27.5
71	Cap'n Entropy's Cavalcade of Wonderment	59586	⬇ 12	⬇ 3			69.3	8.2	18.9	3.6
72	Team Israel	56671		⬇ 1			96.7		2.8	0.5
73	NUST	53137	⬆ 35	⬆ 35	⬆ 4	⬆ 2	57.9	39.7	1.6	0.8
74	Hungary	52997		⬆ 2					4.6	1.4	93.9
75	BitMEX Research	52700	⬇ 19	⬇ 9	⬇ 2	⬇ 2			94.0	6.0
76	EgyptianPolymaths	50896	⬇ 15	⬇ 1	⬇ 1			84.8
77	AJ	50268	⬇ 8	⬇ 4	⬇ 1				74.7	25.3
78	ComputerraRU	46293	⬇ 2		⬆ 1		23.9		70.7	5.4
79	Brno University of Technology	46081	⬇ 4	⬇ 2	⬇ 1			2.4	77.0	20.6
80	Team Belgium	37931	⬇ 2				1.4	2.5	31.4	26.1	38.5
81	huskers-gimps	37666	⬆ 5	⬆ 2	⬆ 1				75.6	24.4
82	Turku	36285	⬆ 1	⬇ 1	⬆ 1				100.0
83	GIMPS.NEO	35901	⬇ 6	⬇ 4	⬇ 2				80.7	19.3
84	Team Viet Nam	35013	⬇ 4	⬇ 2			34.9		38.0	27.1
85	Debian	33368	⬇ 1	⬆ 2	⬆ 1				98.2	1.8
86	Team H	33161	⬇ 1	⬇ 1	⬇ 1	⬆ 1	13.7		85.8	0.5
87	Hermessz	33106	⬆ 1	⬇ 1		⬇ 1	64.3		35.7
88	ᕙ(⇀‸↼‶)ᕗ	31555	⬆ 1		⬆ 1		0.7		98.9	0.4
89	HardOCP	31502	⬇ 8	⬇ 5	⬇ 1				71.9	28.1
90	Aiblspitz	30557	⬆ 16	⬆ 6	⬆ 1			88.5	2.6	8.9
91	baraCUDA	29906	⬆ 131	⬇ 2	⬇ 1				100.0
92	The Fellowship of Infinity	28150	⬆ 2						99.5	0.5
93	MurrayInfoSys	27501	⬆ 4	⬆ 1	⬆ 1				66.9	33.1
94	Channel 4	27109	⬇ 2	⬇ 3	⬇ 1				82.4	17.6
95	Costa Rica	26850	⬆ 1	⬇ 2					79.8	19.9
96	Small-Team-2000	26452	⬇ 6	⬇ 6					3.0	97.0
97	socal_prime	24553	⬇ 6	⬇ 2					76.7	23.1	0.1
98	Georgia Tech	20319	⬆ 5	⬇ 1					100.0
99	LimePrime	19080	⬆ 2	⬆ 4				7.4	82.9	9.7
100	Team Retired	17721	⬇ 2	⬇ 1					30.9	12.0
101	A Single Engineer	17718	⬇ 2	⬇ 3					74.7	25.3
102	Com Systems (RU)	17650	⬆ 14	⬆ 2					70.9	29.1
103	GIMPS Romania	16577	⬆ 1	⬇ 2			77.6		19.3	3.1
104	PrimitiveRootsCircle	16322	⬇ 2	⬇ 4		⬆ 1	14.9		53.4	28.7	3.0
105	SpartaAlumni	15533	⬇ 5	⬇ 3		⬇ 1			75.9	24.1
106	TurkishMath	14500	⬆ 16						94.6	5.4
107	RobotechResearch	14191	⬆ 12	⬆ 2	⬆ 1				50.7	49.3
108	Spain	12678	⬆ 1	⬇ 1	⬇ 1				68.0	32.0
109	moeses	12606	⬆ 3	⬆ 1					98.9	1.1
110	Quantus	12170	⬆ 5	⬆ 2			10.0		13.0	25.1		51.9
111	Ozzie Prime	11899	⬇ 4	⬆ 2					39.8	15.7		44.4
112	Portland State University	11098	⬇ 1	⬆ 8				40.9	44.6	14.4
113	FREE ROBUX	10852	⬆ 7	⬆ 2					100.0
114	Royal Military College of Canada	10691	⬆ 7	⬆ 3	⬆ 2		89.7		7.9	2.4
115	Team Finland	10611	⬇ 5	⬆ 3	⬆ 2		1.5		96.0		2.5
116	Nerdfighters for Mersenne Primes	10546	⬇ 3	⬇ 5	⬇ 2				97.3	2.7
117	University of Waterloo	10503	⬆ 19	⬆ 2	⬆ 2				94.8	5.2
118	Prime Rib	10323	⬆ 23	⬆ 16	⬆ 15				97.7	2.3
119	Team Slovenia	9940	⬇ 2	⬇ 3	⬇ 4				62.8	37.2
120	Syntony	9320	⬆ 6	⬆ 1	⬆ 1					100.0
121	MES-Team	9092	⬇ 28	⬇ 16	⬇ 3		68.0	7.3		24.6
122	LTT fans	9056	⬇ 40				92.5				7.5
123	Shaffer's Studio	8764	⬆ 6	⬆ 1	⬇ 3				89.2	10.6
124	math.auth.gr	8551	⬆ 9	⬆ 3	⬇ 1				100.0
125	JiBoTeam	8443	⬆ 3	⬆ 1	⬇ 1					100.0
126	Pavlicin	8407	⬆ 96	⬆ 2	⬇ 1		79.7	0.1	20.2
127	SETI.Germany	8289	⬇ 22	⬇ 13	⬆ 1			11.4		88.6
128	The_Dude_Abides	8038	⬆ 26	⬆ 21	⬇ 1		0.6		31.1	51.4	1.2
129	Server66	8014	⬆ 8	⬆ 4			100.0
130	Die Zeitfinder	7955	⬆ 1	⬇ 5					90.3	9.7
131	Mensa	7884	⬇ 4	⬇ 2	⬇ 5				80.0	20.0
132	FreeBSD	7865	⬆ 6	⬇ 2					71.0	29.0
133	Granada	7355	⬇ 9	⬇ 10	⬇ 2		28.6		21.6	48.8
134	Abacus	7147	⬇ 2	⬆ 1					98.8	1.2
135	Triangle	7134	⬇ 5	⬇ 4					98.8	1.2
136	GIMPS.Taiwan	7047	⬇ 13	⬇ 4					81.2	18.1	0.1
137	Arpan Sen Labs	6686	⬆ 23	⬆ 3					55.4	44.6
138	FactorMania	6572	⬆ 7	⬇ 1				56.9			43.1
139	Team Christensen	6082	⬆ 4		⬆ 2					100.0
140	irowiki	6050		⬇ 2	⬆ 2					100.0
141	Team Norway	6046	⬇ 27	⬇ 5	⬇ 1		74.4			8.4	16.7
142	Morocco	5956	⬆ 25	⬆ 2	⬆ 3				54.9	45.1
143	Brasil	5635	⬇ 4		⬇ 4				70.0	29.9
144	México mágico	5568	⬆ 12	⬇ 3	⬇ 1				85.3	14.6
145	Korea.Prime	5515	⬆ 17	⬆ 5	⬇ 1				71.5	28.5
146	KnightLight	5009		⬇ 1						100.0
147	teamMALI	4955	⬆ 8	⬆ 7					79.6	20.4
148	nmbarek_team	4942	⬆ 1	⬇ 2					100.0
149	DePaul MAT 141	4934	⬆ 73	⬇ 2					99.6	0.4
150	Crunching@EVGA	4888		⬇ 2					99.7	0.3
151	YESHUA IS THE MESSIAH	4648	⬆ 26	⬆ 1					99.2	0.8
152	Hong Kong GIMP	4450		⬇ 1					70.6	29.4
153	Noam Karni Team	3963	⬆ 5	⬆ 2					79.7	20.3
154	Phi Kappa Theta	3762	⬆ 7	⬆ 3					66.0	34.0
155	Politeknik Banting, Selangor	3101	⬇ 30	⬆ 3	⬆ 2	⬆ 1	65.4		25.5	9.1
156	Olympic College	3075	⬆ 1	⬆ 3	⬆ 2	⬆ 2				100.0
157	Hyperion	3044	⬇ 22	⬇ 4	⬇ 1					18.4
158	Elisabeth-von-Thadden-Schule	3020	⬇ 14	⬇ 16	⬇ 3	⬇ 3			76.7	23.3
159	GIMPS.Hong Kong	2626	⬆ 4	⬆ 2			2.1		61.4	36.4
160	Pi Rho	2499	⬆ 6	⬆ 4					67.1	32.9
161	GIMPSMalaysia	2394	⬆ 7	⬆ 4					66.8	33.2
162	CZAsTc	2288	⬆ 22	⬆ 5	⬆ 1	⬆ 1			99.5	0.4
163	Team Austria	2199	⬇ 68	⬆ 6	⬆ 1	⬆ 1	12.8	9.5	77.7
164	GIMPS_KS	2199	⬆ 7	⬆ 6	⬆ 1	⬆ 1			36.5	62.0	1.4
165	Kabylie	2148	⬇ 1	⬆ 3	⬆ 1	⬆ 1	14.9	2.0	36.1	46.9
166	zeit	2075	⬇ 7	⬇ 4	⬇ 4	⬇ 4	13.2			86.8
167	The Planetary Society	1975	⬆ 55	⬆ 52	⬆ 9	⬆ 8			86.2	13.8
168	The Prime Pioneers	1919	⬆ 6	⬆ 4		⬇ 1		100.0
169	VRS_SE	1852		⬆ 2	⬆ 1	⬇ 1			85.1	14.9
170	Furry Primes	1752	⬇ 17	⬇ 7	⬇ 3	⬇ 1	70.7			29.3
171	San Francisco	1586	⬆ 9	⬆ 3		⬇ 1			100.0
172	hreid	1575	⬆ 9	⬆ 3		⬇ 1			100.0
173	cr_colorado	1549	⬆ 9	⬆ 3		⬇ 1				100.0
174	Obsidian	1542	⬇ 1	⬆ 3		⬇ 1				100.0
175	3DCenter.org	1194	⬇ 5	⬆ 4		⬇ 1					100.0
176	Amserver	1066	⬆ 46	⬆ 4	⬆ 1		100.0
177	Join Us 😈	1060	⬆ 20	⬆ 4	⬆ 1		66.8			33.2
178	youngfun429	1037	⬇ 31	⬆ 4	⬆ 1				75.3	24.7
179	TunisianTeam	1031	⬆ 7	⬆ 4	⬆ 1				75.0	25.0
180	I Love Canadian Natural Resources	1018	⬇ 8	⬇ 2	⬆ 1					100.0
181	Therian Primes	1007	⬆ 6	⬆ 3	⬆ 1			14.6		52.4	33.0
182	Team Bulgaria	905	⬆ 32	⬆ 34	⬆ 1				95.0		5.0
183	Czech National Team	903	⬆ 6	⬆ 2	⬆ 1		4.1		91.8	0.8	2.0
184	RafaÅ‚ HacuÅ›	860	⬆ 38	⬆ 3	⬆ 1				100.0
185	AWC	801	⬆ 6	⬆ 3	⬆ 1				100.0
186	GIMPS Asturias	794	⬆ 6	⬆ 5	⬆ 1				99.6	0.4
187	Weatopians	793	⬆ 6	⬆ 5	⬆ 1				99.7	0.3
188	TimE4This	626	⬆ 2	⬇ 2	⬆ 1					100.0
189	SGDynamo Dresden	595	⬆ 9	⬆ 4	⬆ 1		100.0
190	PARG team	563	⬆ 29	⬆ 4	⬆ 1					96.2	3.8
191	PrimeObsession	539	⬆ 8	⬆ 4	⬆ 1					100.0
192	GIMPS.Romania	422	⬆ 30	⬆ 4	⬆ 1				100.0
193	LIKN	276	⬆ 29	⬆ 26	⬆ 21	⬆ 1				100.0
194	Yurunago	276	⬆ 9	⬆ 5	⬆ 1	⬇ 1				100.0
195	Vegan	275	⬆ 9	⬆ 5	⬆ 1					100.0
196	SETI.USA	275	⬆ 26	⬆ 23	⬆ 18					100.0
197	Byberg Nordic Prime	265	⬆ 8	⬆ 4						100.0
198	FDY	265	⬆ 24	⬆ 4						100.0
199	Subprime Searches	256	⬇ 21	⬆ 4		⬆ 1				100.0
200	His Dark Materials	254	⬇ 12	⬇ 2	⬇ 6	⬇ 1					99.9
201	GIMPS Hams	253	⬆ 7	⬆ 3	⬇ 1			100.0
202	WSU Cougars	247	⬇ 17	⬆ 3	⬇ 1					100.0
203	miiro	240	⬆ 10	⬆ 4	⬇ 1		100.0
204	Zorin OS Crew	230	⬇ 21	⬆ 4	⬇ 1					100.0
205	DividerHunt	221	⬆ 4	⬆ 4	⬇ 1		100.0
206	GIMPS_IOM	215	⬇ 30	⬇ 9	⬇ 1		100.0
207	Manri Costa Rica	213	⬆ 3	⬆ 4	⬇ 1					100.0
208	/r/counting	184	⬆ 4	⬆ 4	⬇ 1
209	Team Dominik Radler	183	⬇ 7	⬇ 3	⬇ 1		100.0
210	GIMPS.Peace	122	⬆ 5	⬆ 3	⬇ 1		44.7	55.3
211	sannerud.com	108	⬆ 6	⬆ 4	⬇ 1		43.1				19.4	37.5
212	alan145	59	⬇ 12	⬇ 2	⬇ 1		100.0
213	PROMYS	23	⬆ 5	⬆ 4	⬇ 1						100.0
214	yfinder	1	⬆ 7	⬆ 4	⬇ 1					100.0