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 2026-08-26 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	206235937	⬆ 1	⬆ 1			0.6		0.2		99.1
2	Ars Technica Team Prime Rib	169742198	⬆ 2	⬆ 2				99.3		0.6
3	Slovakia	156793700	⬇ 2	⬇ 2			0.3	88.4	0.4	0.1	10.8
4	PrimeNet	150615904	⬆ 1	⬇ 1			0.2	80.0	0.6	0.8	18.3
5	POLAND	111341338	⬇ 2				0.9	96.0	0.4	0.1	2.6
6	-Too many Ones-	66481293						78.0			22.0
7	Team#1	23007900	⬆ 1				1.9	16.6	44.1	35.5	2.0
8	GIMPSChina	20587365	⬇ 1				46.7	31.7	4.3	0.7	16.5
9	Numberphile	12629341	⬆ 8				3.4	18.1	4.8	1.7	72.0
10	UCM-curtisc	12596860							99.2	0.8
11	Team-Deutschland	11172649					2.1	65.5	1.2	0.2	30.9
12	More Power!!!	9156283					18.3	73.7	3.2	3.0	1.8
13	TeamUK	6342222	⬆ 1				45.8	2.5	21.0	1.9	28.8
14	Porta Kruse	6329864	⬆ 1				2.0	0.5			91.2	6.2
15	GW's legions	6103519	⬇ 6				0.1	2.0	89.2	4.1	4.6
16	GPU to 72	5921171					44.3	36.8	1.7	3.1	13.9
17	tsc	3715593	⬆ 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	3013768	⬆ 1				4.9	4.8	82.0	8.3
21	Argentina	2563445	⬇ 1				92.1		7.9
22	Wikipedia	1886211	⬆ 1				56.7	35.4	4.8	2.1	0.9
23	GIMPS.Korea	1710377	⬆ 3				87.8	4.6	3.5	0.8	3.3
24	GIMPS.Occitania	1186182	⬆ 1					4.5				95.5
25	Dutch Power Cows	1112181	⬆ 2	⬆ 2	⬆ 3		38.7	10.0	1.4	2.3	47.6
26	404 - "Primes not Found"	968659	⬆ 13	⬆ 3	⬇ 1		93.4		6.5	0.1
27	Swedes Of Primes	908574	⬇ 3	⬇ 1	⬇ 1		1.8	76.9	17.8	3.4
28	MBAi.Cloud	821684			⬇ 1				99.9	0.1
29	SpongeBob SquarePants	587343	⬇ 7	⬇ 4				31.1	64.5	4.3
30	MATHSareREAL	578886					96.2		2.5	1.3
31	GIMPS.USA	483278	⬆ 11	⬆ 1	⬆ 1		31.2	44.2	17.9	4.0	2.3
32	Buhr	476066		⬇ 1	⬇ 1		44.6	6.0	16.6	5.6	27.2
33	Colorado School of Mines	418236	⬆ 4				83.1		15.7	1.3
34	citizenscience.ru	374415	⬇ 3				85.4	1.4	8.2	1.1	3.9
35	MOXA	357730	⬆ 1	⬆ 2			99.6		0.4
36	Rechenkraft.net	347927	⬇ 2				0.1	51.5	4.8	7.2	36.4
37	Terry Kim Team	324045	⬇ 2	⬇ 2			95.2		3.5	0.9
38	GIMPS.Japan	301971	⬇ 5				44.6		40.2	14.8	0.3
39	S485122	301285	⬇ 1					95.0		5.0
40	nranks	263555	⬆ 1				28.3	0.4	2.7	0.3	68.2
41	YahsTeam	229217	⬆ 2				86.4		11.0	2.6
42	NanJing Tech	216777	⬆ 4	⬆ 1			24.2		72.4	3.4
43	GIMPS Team Philippines	202081	⬆ 2	⬆ 1			47.9		11.0	2.1	34.4
44	NerdyGirls	186965		⬆ 2				45.4	5.2	49.4
45	Canada	169840	⬆ 3	⬆ 2			8.3	1.0	65.5	25.2
46	Team Tartan	164078	⬆ 1	⬆ 2					77.6	22.4
47	GIMPS.Portugal	152941	⬆ 11	⬆ 4			48.5	50.0		1.5
48	IOTA	148216	⬆ 8	⬆ 5	⬆ 1		93.8		4.5	1.7
49	OverclockerAustralia	145055			⬇ 1		60.5		14.5	19.8
50	GIMPS.NZ	137774					78.9	0.2	12.1	8.8	0.1
51	Team China	131776		⬆ 1					99.7	0.3
52	Unicamp	120511		⬆ 2	⬆ 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	110216	⬆ 22	⬆ 2	⬆ 1		95.4		2.9	1.5
55	UIUC	97644	⬆ 7	⬆ 3	⬆ 2				67.0	33.0
56	AMD Users	94664	⬆ 3	⬆ 1	⬆ 2	⬆ 1	49.3	0.6	5.1	44.6	0.4
57	unRAID	93098	⬇ 28	⬇ 12	⬇ 1	⬆ 1		28.4	63.1	7.6	0.8
58	Smoke-it	92061	⬇ 18	⬇ 16	⬇ 6	⬇ 2	91.4	8.6
59	Wile E. Coyote	85566	⬆ 8	⬆ 1					74.4	0.1	25.5
60	SASAKI	81589	⬇ 5	⬇ 1			100.0
61	Eratosthenes Sieve	73328	⬆ 5	⬆ 3	⬆ 4	⬆ 1	0.7		94.2	5.0
62	GIMPS China	73188	⬇ 5	⬆ 1		⬇ 1	82.5		10.7	0.1	6.5
63	Wisconsin	72808	⬇ 2	⬇ 1	⬇ 2		29.7		35.7	34.5
64	Net-Work	72754		⬆ 1			6.2	1.0			81.8
65	SHADO	72700		⬇ 4	⬇ 2				60.9	18.9	12.5	1.1
66	NUST	71966	⬆ 41	⬆ 9			55.8	42.4	1.2	0.6
67	S147127	68123	⬆ 4				33.8		27.1	39.1
68	Team_Italia	66157	⬆ 7	⬆ 1			3.1	0.5	65.3	23.1	4.5	1.8
69	Esperanto	63801		⬇ 1				25.9	3.8	70.4
70	ParadoxZ Commando	62490	⬆ 2						71.1	28.9
71	ComputerraRU	58384	⬆ 6	⬆ 8	⬆ 4		39.9		55.8	4.3
72	Cap'n Entropy's Cavalcade of Wonderment	52622	⬇ 9	⬇ 1	⬇ 1		71.1	9.2	15.7	4.0
73	Team Israel	51485		⬇ 1	⬇ 1		96.4		3.1	0.5
74	EgyptianPolymaths	51097	⬇ 6	⬆ 2	⬇ 1			84.5
75	Hungary	48488	⬇ 1	⬇ 1	⬇ 1				5.0	1.0	93.9
76	AJ	45414	⬇ 6	⬆ 1					74.1	25.9
77	Brno University of Technology	44880	⬆ 1	⬆ 1					79.3	20.7
78	Team Belgium	37715	⬆ 2	⬆ 2			1.4	2.6	31.6	25.7	38.7
79	Turku	36285	⬆ 3	⬆ 3	⬆ 2				100.0
80	Aiblspitz	35981	⬆ 21	⬆ 10	⬆ 3	⬆ 1		93.1		6.9
81	huskers-gimps	35840	⬆ 3		⬆ 1	⬇ 1			75.0	25.0
82	BitMEX Research	33384	⬇ 22	⬇ 9	⬇ 2				90.6	9.4
83	Debian	33368	⬆ 3	⬆ 2	⬆ 4				98.2	1.8
84	Team Viet Nam	33194	⬇ 3				36.8		37.7	25.5
85	GIMPS.NEO	32694	⬇ 6	⬇ 2					83.9	16.1
86	Hermessz	32404	⬆ 2				63.5		34.0	2.4
87	Team H	32194	⬇ 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	29474	⬆ 4	⬆ 3	⬆ 3	⬆ 1			68.2	31.8
91	The Fellowship of Infinity	28951	⬆ 1	⬆ 1		⬇ 1			99.5	0.5
92	HardOCP	26991	⬇ 9	⬇ 3					72.4	27.6
93	Channel 4	26315		⬆ 1	⬆ 2				81.8	18.1
94	Small-Team-2000	24462	⬇ 4	⬆ 2						100.0
95	Costa Rica	23716			⬆ 1				80.3	19.3
96	socal_prime	22764	⬇ 5	⬆ 1	⬆ 1				72.5	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	⬇ 20						100.0
100	GIMPS Romania	18264	⬆ 3	⬆ 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	⬇ 1					70.3	29.7
103	PrimitiveRootsCircle	15558	⬆ 1	⬆ 2	⬆ 1		9.2		61.2	26.9	2.7
104	RobotechResearch	15521	⬆ 10	⬆ 3	⬆ 3	⬆ 1			51.4	48.6
105	TurkishMath	15298	⬆ 8	⬆ 1	⬆ 1	⬆ 1			94.9	5.1
106	SpartaAlumni	15291	⬇ 8	⬇ 2	⬇ 1	⬇ 2			77.3	22.7
107	Team Retired	15232	⬇ 8	⬇ 7	⬇ 4				25.5	10.4
108	moeses	12643	⬆ 2	⬆ 1					98.9	1.1
109	Portland State University	11406	⬆ 7	⬆ 3	⬆ 5	⬆ 1		38.9	58.4	2.6
110	Quantus	11402	⬆ 2		⬇ 1	⬇ 1	10.6		13.9	20.1		55.4
111	Spain	11132	⬇ 5	⬇ 3	⬇ 1				70.5	29.5
112	FREE ROBUX	10852	⬆ 7	⬆ 1	⬇ 1				100.0
113	Team Slovenia	10722	⬆ 2	⬆ 6	⬇ 1				65.6	34.4
114	Royal Military College of Canada	10691	⬆ 6		⬇ 1		89.7		7.9	2.4
115	Team Finland	10589	⬆ 2				1.3		96.2		2.5
116	Mensa	10585	⬆ 9	⬆ 15	⬆ 9				61.0	39.0
117	Prime Rib	9922	⬆ 19	⬆ 1	⬇ 1				97.9	2.1
118	Nerdfighters for Mersenne Primes	9775	⬇ 7	⬇ 2	⬇ 1				97.1	2.9
119	University of Waterloo	9729	⬆ 10	⬇ 2	⬇ 1				94.4	5.6
120	Syntony	9597	⬆ 2		⬇ 1					100.0
121	Shaffer's Studio	9532	⬆ 5	⬆ 2	⬇ 1				90.3	9.5
122	LTT fans	9056	⬇ 26		⬇ 1	⬆ 1	92.5				7.5
123	Ozzie Prime	8920	⬇ 14	⬇ 12	⬇ 1	⬇ 1			26.9	21.4		51.8
124	math.auth.gr	8551	⬆ 9						100.0
125	The_Dude_Abides	8448	⬆ 29	⬆ 3	⬆ 3				29.6	52.0	1.2
126	Pavlicin	8407	⬆ 12		⬆ 1		79.7	0.1	20.2
127	SETI.Germany	8362	⬇ 9		⬇ 4			11.3		88.6
128	JiBoTeam	8217	⬇ 1	⬇ 3	⬇ 2					100.0
129	Arpan Sen Labs	7752	⬆ 19	⬆ 8	⬆ 1				58.0	42.0
130	Die Zeitfinder	7213	⬇ 2		⬇ 1				89.3	10.7
131	Triangle	7141	⬆ 1	⬆ 4					99.0	1.0
132	Morocco	7096	⬆ 31	⬆ 10					58.1	41.9
133	FreeBSD	7074	⬆ 2	⬇ 1					67.7	32.3
134	GIMPS.Taiwan	7047	⬇ 11	⬆ 2					81.2	18.1	0.1
135	Server66	6758	⬆ 23	⬇ 6			100.0
136	FactorMania	6572	⬆ 5	⬆ 2				56.9			43.1
137	Abacus	6370	⬇ 6	⬇ 3					98.7	1.3
138	Granada	6214	⬇ 17	⬇ 5			32.3		25.6	41.9
139	Team Christensen	6120	⬆ 3							100.0
140	irowiki	6087								100.0
141	México mágico	5568	⬆ 2	⬆ 3					85.3	14.6
142	Hong Kong GIMP	5541	⬆ 3	⬆ 10	⬆ 2	⬆ 2			71.8	28.2
143	Korea.Prime	5520	⬆ 9	⬆ 2	⬇ 1	⬇ 1			71.4	28.6
144	Brasil	5192	⬇ 7	⬇ 1	⬇ 1	⬇ 1			76.0	23.9
145	KnightLight	4970	⬆ 2	⬆ 1						100.0
146	teamMALI	4955	⬆ 4	⬆ 1					79.6	20.4
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	⬆ 5	⬆ 3					72.3	27.7
152	Team Norway	4396	⬇ 22	⬇ 11			74.9			5.8	18.8
153	Noam Karni Team	3957	⬆ 2		⬆ 1				79.9	20.1
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		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	⬆ 4	⬆ 1				99.6	0.4
160	The Planetary Society	2237	⬆ 62	⬆ 15	⬆ 1				76.1	23.9
161	Team Austria	2199	⬇ 37	⬆ 3	⬆ 1		12.8	9.5	77.7
162	GIMPS_KS	2199	⬆ 9	⬆ 3	⬆ 1				36.5	62.0	1.4
163	zeit	2075	⬇ 3	⬇ 1	⬆ 1		13.2			86.8
164	Hyperion	1982	⬇ 25	⬇ 7	⬆ 1					27.8
165	SETI.USA	1961	⬆ 57	⬆ 31	⬆ 1				43.4	56.6
166	The Prime Pioneers	1919	⬆ 6	⬆ 1	⬆ 1			100.0
167	VRS_SE	1846	⬆ 3	⬆ 1	⬆ 1				85.4	14.6
168	Elisabeth-von-Thadden-Schule	1788	⬇ 24	⬇ 13	⬆ 2	⬆ 1			86.5	13.5
169	hreid	1575	⬆ 8	⬆ 2	⬆ 3	⬆ 2			100.0
170	Obsidian	1564	⬆ 10	⬆ 3	⬇ 1	⬇ 2				100.0
171	cr_colorado	1549	⬆ 8	⬆ 1	⬆ 2	⬆ 1				100.0
172	I Love Canadian Natural Resources	1542	⬆ 9	⬆ 8	⬆ 2	⬆ 1				100.0
173	MES-Team	1451	⬇ 71	⬇ 52	⬇ 20	⬆ 1	36.0	12.6		51.3
174	Amserver	1066	⬆ 48	⬆ 2	⬆ 2	⬆ 1	100.0
175	youngfun429	1037	⬇ 1	⬆ 3	⬆ 4	⬆ 1			75.3	24.7
176	Kabylie	1031	⬇ 12	⬇ 10	⬆ 2	⬆ 3	26.7			73.3
177	Furry Primes	1018	⬇ 16	⬇ 8	⬇ 2	⬆ 1	49.5			50.5
178	Therian Primes	1007	⬆ 10	⬆ 3	⬆ 2	⬆ 2		14.6		52.4	33.0
179	Team Bulgaria	905	⬆ 40	⬆ 3	⬆ 2	⬆ 2			95.0		5.0
180	Catalunya Team	868	⬆ 42	⬆ 35	⬆ 4	⬆ 2			98.3	1.7
181	RafaÅ‚ HacuÅ›	860	⬆ 10	⬆ 3	⬆ 1	⬆ 2			100.0
182	Czech National Team	860	⬆ 7	⬆ 1	⬆ 1	⬆ 2			96.4	0.5	1.8
183	The Court of the Math Jester	854	⬆ 39	⬆ 32	⬆ 2	⬆ 2			100.0
184	UMD University of Maryland Prime Hunters	850	⬆ 38	⬆ 31	⬆ 2	⬆ 2			100.0
185	AWC	801	⬆ 7		⬆ 2	⬆ 2			100.0
186	San Francisco	795	⬇ 10	⬇ 16	⬇ 15	⬇ 16			100.0
187	GIMPS Asturias	794	⬆ 7	⬇ 1	⬆ 1	⬆ 1			99.6	0.4
188	Weatopians	793	⬆ 7	⬇ 1	⬆ 1	⬆ 1			99.7	0.3
189	Join Us 😈	765	⬇ 5	⬇ 12	⬇ 12	⬇ 12	54.0			46.0
190	3DCenter.org	582	⬇ 15	⬇ 16							100.0
191	SGDynamo Dresden	579	⬆ 7	⬇ 2			100.0
192	PARG team	563	⬆ 11	⬇ 2						96.2	3.8
193	PrimeObsession	539	⬆ 6	⬇ 2						100.0
194	GIMPS.Romania	422	⬆ 6	⬇ 2					100.0
195	Azerbaijan	288	⬆ 27	⬆ 20	⬆ 21					96.9	3.1
196	LIKN	285	⬆ 26	⬇ 2	⬇ 1					99.9
197	Denmark	277	⬆ 25	⬆ 18	⬇ 1					100.0
198	Yurunago	276	⬆ 6	⬇ 5	⬇ 1					100.0
199	Vegan	275	⬆ 7	⬇ 4	⬇ 1					100.0
200	alan145	268	⬆ 1	⬆ 12	⬆ 7		62.3				37.7
201	Byberg Nordic Prime	265	⬆ 6	⬇ 4	⬇ 2					100.0
202	FDY	265	⬆ 6	⬇ 4	⬇ 2					100.0
203	TunisianTeam	258	⬇ 16	⬇ 24	⬇ 2					100.0
204	Subprime Searches	256	⬇ 18	⬇ 4	⬇ 2					100.0
205	GIMPS Hams	253	⬆ 6	⬇ 4	⬇ 2			100.0
206	WSU Cougars	247	⬇ 23	⬇ 4	⬇ 2					100.0
207	miiro	240	⬆ 8	⬇ 4	⬇ 2		100.0
208	DividerHunt	221	⬆ 4	⬇ 3	⬇ 2		100.0
209	/r/counting	184	⬆ 5	⬇ 1
210	His Dark Materials	171	⬇ 13	⬇ 11	⬇ 2						99.8
211	GIMPS_IOM	153	⬇ 26	⬇ 5	⬇ 1		100.0
212	Team Dominik Radler	137	⬇ 7	⬇ 3	⬇ 1		100.0
213	GIMPS.Peace	122	⬆ 3	⬇ 3	⬇ 1		44.7	55.3
214	sannerud.com	108	⬆ 4	⬇ 3	⬇ 1		43.1				19.4	37.5
215	PROMYS	23	⬆ 5	⬇ 2	⬇ 1						100.0
216	yfinder	1	⬆ 5	⬇ 2	⬇ 1					100.0