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 2026-01-17 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	992959170	⬆ 1				0.4		0.1		99.5
2	Slovakia	691325375	⬆ 1	⬆ 1			0.2	97.6			2.2
3	PrimeNet	469960164	⬇ 2	⬇ 1				98.1	0.2	0.3	1.4
4	POLAND	449238657					0.3	99.1	0.1		0.5
5	-Too many Ones-	241194981					0.3	86.7			12.9
6	Ars Technica Team Prime Rib	34012088					0.2	94.7	0.1	2.3	2.7
7	unRAID	33916214						99.5	0.4		0.1
8	GIMPSChina	21735344					81.9	11.5	4.2	0.8	1.6
9	One Man Team	16980675						99.5	0.5
10	More Power!!!	14420717					13.9	56.0	1.8	0.7	27.6
11	GW's legions	12736292					0.1	0.9	29.2	0.6	69.2
12	Team-Deutschland	12135066					4.0	5.5	0.6	0.2	89.6	0.1
13	UCM-curtisc	11926719							99.4	0.6
14	TeamUK	7392117	⬆ 2				38.1	6.5	19.0	1.2	34.9	0.2
15	Porta Kruse	6315244	⬆ 20	⬆ 10				0.1		0.1	93.5	6.2
16	szerverem.hu	6134696	⬆ 226	⬆ 220	⬆ 1		6.9	43.9	35.7	6.0	7.4
17	GPU to 72	5044528	⬇ 3	⬇ 2	⬇ 1		64.0	21.0	0.7	3.6	10.6
18	SpongeBob SquarePants	4336169	⬇ 3	⬇ 2			3.9	30.9	51.7	11.9	1.5
19	Numberphile	2937183	⬇ 1	⬇ 1			32.7	40.2	18.7	6.7	1.4
20	Dutch Power Cows	2457980	⬇ 3	⬇ 3			32.1	33.1	1.2	1.1	32.4
21	tsc	2398615	⬇ 2	⬇ 2			91.3	6.5	1.6	0.2	0.4
22	UKRAINE	2184559	⬇ 2	⬇ 2			36.7	15.2	34.2	13.8
23	Wikipedia	1891719	⬆ 1	⬇ 2			60.1	32.7	4.1	2.3	0.5
24	Swedes Of Primes	1558224	⬇ 2	⬇ 2			0.1	83.5	14.1	2.3
25	GIMPS.USA	1413598	⬇ 2	⬇ 2			5.5	0.2	3.5	2.0	88.7
26	GIMPS.Japan	1341424	⬇ 5	⬇ 2			4.5	0.1	8.0	1.7	85.7
27	GIMPS.Occitania	1278248	⬇ 2	⬇ 1								100.0
28	MOXA	705738	⬇ 2		⬆ 1		98.8		0.9	0.3
29	MATHSareREAL	676045	⬇ 1	⬇ 2	⬇ 1		96.0		2.9	1.1
30	MBAi.Cloud	541103	⬇ 1						100.0
31	Rechenkraft.net	505842	⬇ 4	⬇ 2			4.6	61.5	2.9	5.8	24.4	0.8
32	citizenscience.ru	434039	⬇ 2	⬇ 1			82.5	7.3	3.6	0.8	3.2	2.6
33	Terry Kim Team	430322		⬇ 1			98.2		0.9	0.3
34	Buhr	397809	⬆ 2	⬇ 1			65.2	1.5	21.0	6.4	6.1
35	GIMPS.Korea	380260	⬆ 49	⬆ 1			84.9	4.9	8.9	1.2	0.2
36	Smoke-it	318289	⬇ 4	⬇ 2			91.4	5.9	1.8	0.1
37	S485122	313166	⬇ 3	⬇ 2				95.0		5.0
38	NerdyGirls	214302	⬆ 10	⬆ 5	⬆ 2		3.7	39.9	9.6	46.8
39	YahsTeam	208426	⬆ 2	⬇ 1			87.4		10.9	1.7
40	GIMPS China	203018	⬇ 9	⬇ 3	⬇ 2		96.0		1.1	0.3	2.3
41	Canada	199667	⬆ 2	⬇ 2				4.2	62.2	32.4
42	Team Tartan	198156	⬆ 2	⬇ 2					77.3	22.7
43	randomteam	188950	⬆ 4	⬇ 1							100.0
44	GIMPS Team Philippines	188745	⬆ 1	⬆ 2	⬆ 1		85.3		2.2	1.9	10.6
45	BitMEX Research	176346	⬇ 6	⬇ 4	⬇ 1				94.9	5.1
46	nranks	157518		⬇ 1			45.9	0.8	3.9	1.1	48.3
47	OverclockerAustralia	147192	⬆ 2				59.7		21.2	15.6
48	Team China	125618	⬆ 7	⬆ 3	⬆ 1				99.7	0.3
49	GIMPS.NZ	122206	⬆ 1	⬆ 1	⬆ 1		78.9		10.1	10.9
50	Cap'n Entropy's Cavalcade of Wonderment	121939	⬆ 1	⬇ 1	⬇ 2		78.3	4.8	14.7	2.2
51	Wisconsin	116832	⬆ 2	⬆ 1			54.1		26.9	19.0
52	SASAKI	116021		⬆ 1			100.0
53	EgyptianPolymaths	109942	⬆ 6	⬆ 1	⬆ 2		1.3	26.8		0.9	66.0
54	Georgia Tech	103956	⬇ 17	⬇ 10			96.9	0.8	2.2
55	Unicamp	99297	⬆ 22	⬆ 1	⬆ 1	⬆ 1	73.3	0.3	20.7	5.7
56	UW Eau Claire	98531	⬆ 186	⬆ 19	⬆ 2	⬆ 1			76.7	23.3
57	Hungary	95218	⬆ 6	⬇ 2		⬆ 1	0.6	0.1	1.9	2.9	94.1
58	404 - "Primes not Found"	94632	⬆ 13	⬆ 11	⬆ 4	⬆ 1	51.2		48.8
59	Team Finland	94568	⬇ 21	⬇ 11	⬇ 6	⬇ 4	85.3	0.4	14.0		0.3
60	LTT fans	80332	⬆ 1			⬆ 1	55.4		8.6	2.6	33.4
61	Net-Work	78538	⬆ 1			⬆ 1	0.7	3.2			88.0
62	SHADO	77722	⬆ 2	⬇ 4	⬇ 3	⬇ 2			61.8	17.6	11.8	2.8
63	GIMPS.France	76006	⬇ 9	⬆ 4	⬆ 4	⬆ 2	14.7	34.5	6.2	26.1	18.2
64	Esperanto	75736	⬇ 6	⬇ 2		⬇ 1		23.0	23.4	53.5	0.2
65	Eratosthenes Sieve	75381		⬇ 2		⬇ 1	0.7		99.3
66	UIUC	75004	⬆ 1	⬇ 2					69.1	30.9
67	Colorado School of Mines	71682	⬆ 64	⬆ 35	⬆ 4	⬆ 1	78.9		15.3	5.9
68	Brno University of Technology	71051	⬇ 8	⬇ 11	⬇ 5	⬇ 1		36.8	52.9	10.4
69	GIMPS.NEO	65572	⬇ 1	⬇ 4	⬇ 1				74.3	25.7
70	Team Israel	62941	⬇ 1	⬇ 4	⬇ 1		96.6		1.3	2.2
71	ParadoxZ Commando	58821	⬆ 1		⬆ 1				74.7	25.2
72	AMD Users	58620	⬇ 15		⬇ 2		79.6		14.8	5.6
73	Team_Italia	56514	⬆ 1	⬇ 3			2.2		72.8	17.7	2.1	4.5
74	AJ	51676	⬆ 1	⬆ 3					75.6	24.4
75	Team Belgium	49514	⬇ 9	⬇ 2	⬆ 2		1.6	7.1	39.9	14.6	36.9
76	ComputerraRU	48521	⬇ 20	⬇ 8	⬇ 1		16.2		75.8	8.0
77	S147127	48519	⬇ 1	⬇ 1	⬇ 1		19.9		9.8	70.4
78	Wile E. Coyote	44682	⬆ 4	⬆ 2	⬆ 1				81.0	5.9	13.2
79	Team Viet Nam	44328	⬇ 39	⬇ 1	⬇ 1		27.5		30.0	31.9	10.5
80	Team Austria	42756	⬇ 7	⬇ 1			98.8			1.2
81	MES-Team	42318	⬇ 11	⬇ 7			72.2	7.6		20.2
82	LimePrime	39384	⬇ 3	⬇ 1				6.6	88.8	4.6
83	Team H	35808	⬇ 3	⬇ 1	⬆ 1		8.9	1.6	89.0	0.5
84	socal_prime	35793	⬇ 6	⬇ 1	⬇ 1			1.1	66.6	32.0	0.1
85	Hermessz	32207	⬇ 2	⬇ 1			59.2		40.8
86	huskers-gimps	31043	⬆ 16	⬆ 1	⬆ 2	⬆ 1			77.4	22.6
87	HardOCP	30580	⬆ 4	⬇ 2		⬇ 1			78.2	21.8
88	Small-Team-2000	29404		⬇ 2	⬇ 2				10.6	89.3
89	Debian	29270	⬆ 11	⬇ 1					98.2	1.8
90	MadPoo	26227	⬇ 48	⬇ 31				17.9	15.6	66.5
91	Costa Rica	22787	⬇ 1	⬇ 1					71.3	28.3
92	Team Norway	20992	⬆ 3	⬆ 4	⬆ 1		84.1			2.4	12.4	1.2
93	Team Retired	20839	⬆ 1	⬆ 2	⬆ 1				26.3	10.1
94	Portland State University	19850	⬇ 9	⬇ 2	⬇ 2		20.5	23.7	43.6	12.2
95	PrimitiveRootsCircle	18997	⬆ 12	⬆ 5	⬆ 5		34.7		41.3	21.6	2.5
96	Ozzie Prime	18912	⬇ 7	⬆ 2	⬇ 1			4.5	61.5	12.8		21.1
97	A Single Engineer	18654	⬆ 1	⬆ 2	⬆ 1				78.4	21.6
98	Quantus	18051	⬇ 5	⬇ 7	⬇ 2		9.1		30.0	25.9		35.0
99	The Fellowship of Infinity	17916	⬆ 38	⬆ 10	⬆ 2				99.5	0.5
100	SpartaAlumni	17866	⬇ 8	⬇ 7	⬇ 1				71.1	28.9
101	NanJing Tech	17148	⬆ 141	⬆ 135	⬆ 11	⬆ 2			100.0
102	Spain	16788	⬇ 16	⬇ 13	⬇ 5	⬇ 1	21.8		51.1	27.1
103	Team Slovenia	16578	⬇ 16	⬇ 9		⬇ 1			74.6	25.4
104	Nerdfighters for Mersenne Primes	16248		⬇ 1	⬆ 1		2.9		80.8	16.3
105	GIMPS.Taiwan	15799	⬇ 8	⬇ 4	⬇ 1				88.4	11.2
106	Channel 4	15765	⬇ 10	⬇ 1	⬇ 4				85.0	15.0
107	MurrayInfoSys	15150	⬆ 12	⬆ 9	⬇ 1				62.1	37.8
108	GIMPS.Portugal	14619		⬇ 1			0.1	71.6		28.3
109	Politeknik Banting, Selangor	14311	⬇ 28	⬇ 12	⬇ 2		77.7		5.5	16.8
110	ᕙ(⇀‸↼‶)ᕗ	14198	⬆ 34	⬆ 7	⬆ 1				99.5	0.5
111	moeses	13969	⬇ 1		⬇ 2	⬆ 1			99.3	0.7
112	Granada	13845	⬇ 3	⬇ 4	⬇ 2	⬇ 1	34.0		5.6	59.9
113	Hyperion	13775	⬇ 1	⬇ 3					1.9	29.8
114	MES22-Team	13207	⬇ 15	⬇ 10			100.0
115	youngfun429	12791	⬇ 10	⬇ 9					60.6	39.4
116	SETI.Germany	12752	⬆ 1	⬇ 4				7.4	24.8	67.7
117	Mensa	12333	⬆ 1	⬆ 1					69.7	30.3
118	VIPR	12151	⬇ 3	⬇ 3					71.1	28.9
119	FREE ROBUX	10852	⬆ 123	⬆ 117					100.0
120	Die Zeitfinder	10777	⬇ 9	⬇ 6					100.0
121	Royal Military College of Canada	10691	⬆ 121	⬇ 2			89.7		7.9	2.4
122	Abacus	10327	⬆ 5	⬇ 2					92.1	7.9
123	nmbarek_team	9947	⬇ 3		⬆ 1	⬆ 1			99.8	0.2
124	FreeBSD	9888	⬇ 18	⬇ 11	⬇ 1	⬇ 1	11.4		76.3	12.3
125	Triangle	9580	⬇ 9						96.5	3.5
126	Turku	9565	⬇ 25	⬇ 4	⬆ 6				100.0
127	Syntony	9528	⬆ 1	⬇ 1	⬇ 1					100.0
128	JiBoTeam	9405	⬇ 5	⬇ 1	⬇ 1					100.0
129	TurkishMath	9327	⬇ 8	⬇ 8	⬇ 1				91.8	8.2
130	Shaffer's Studio	8956	⬇ 6	⬇ 6	⬇ 1				86.2	13.7
131	Server66	8528	⬇ 6	⬇ 3	⬇ 1		100.0
132	NUST	8326	⬆ 110	⬆ 30	⬆ 5		12.9	82.0		5.1
133	Furry Primes	8022		⬇ 3	⬇ 2		58.8		27.1	14.1
134	Aiblspitz	7920	⬆ 6	⬇ 1	⬇ 1		2.1	59.6	20.0	16.3	2.1
135	irowiki	7815	⬇ 6	⬇ 6						100.0
136	Team Splunk	7605	⬇ 4	⬇ 4	⬇ 2			28.1	71.9
137	Brasil	7131	⬇ 7	⬇ 6	⬇ 1				76.4	23.5
138	WSU Cougars	6864	⬆ 1	⬇ 3					56.6	43.3
139	Prime Rib	6851	⬇ 26	⬇ 3					97.2	2.8
140	SU Prime Pirates	6437	⬆ 3	⬇ 2					61.5	38.5
141	University of Waterloo	6259	⬆ 6	⬇ 7					100.0
142	Com Systems (RU)	6153	⬆ 47	⬆ 11	⬆ 1				63.2	36.8
143	Elisabeth-von-Thadden-Schule	6033	⬆ 5	⬇ 1	⬆ 1	⬆ 1			38.4	61.6
144	Team Christensen	6001	⬇ 3	⬇ 3	⬇ 2	⬆ 1				100.0
145	GIMPS Romania	5527			⬆ 1	⬆ 1			100.0
146	International School of Beijing (ISB)	5391	⬇ 12	⬇ 7	⬆ 1	⬆ 1			99.6	0.4
147	Optimists Prime	5374	⬇ 1		⬆ 1	⬆ 1		54.9	41.1	4.0
148	The_Dude_Abides	5289	⬇ 22	⬇ 8	⬆ 2	⬆ 1	37.3			53.3
149	zeit	5065	⬇ 13	⬇ 5		⬆ 1	3.3			96.7
150	teamMALI	4899	⬇ 1	⬇ 7	⬇ 5	⬇ 7			79.4	20.6
151	3DCenter.org	4770	⬇ 13	⬇ 5							100.0
152	Danpi for GIMPS	4710	⬇ 1	⬇ 4	⬆ 1		100.0
153	ANDY	4448		⬇ 3	⬆ 2				99.3	0.6
154	The East Coast	4426	⬇ 51	⬇ 3	⬆ 2		99.3	0.7
155	Hong Kong GIMP	4406	⬆ 6	⬇ 6	⬇ 1				70.8	29.2
156	Kabylie	4383	⬇ 1	⬇ 4	⬆ 1		15.0	4.6	35.5	44.8	0.1
157	GIMPS.Hong Kong	4263	⬇ 5	⬇ 2	⬆ 1		3.0		54.5	42.5
158	Olympic College	4166	⬆ 2	⬇ 1	⬆ 1					100.0
159	Black Mesa	3971	⬇ 45	⬇ 22	⬇ 7				84.0	16.0
160	Phi Kappa Theta	3601	⬆ 7		⬆ 2	⬆ 1			65.5	34.5
161	TunisianTeam	3415	⬇ 7	⬇ 3	⬇ 1	⬇ 1			22.7	77.3
162	Zorin OS Crew	3198	⬇ 3	⬇ 1	⬆ 2				70.1	29.8
163	Team_Brazil	2999	⬆ 6	⬆ 1	⬆ 2		83.1	0.2		16.7
164	I Love Canadian Natural Resources	2921	⬆ 7	⬇ 5	⬇ 3					100.0
165	Subprime Searches	2630	⬇ 9	⬆ 3	⬆ 1		90.3			9.7
166	EggCelentes	2574	⬆ 7		⬆ 1				42.1	57.9
167	Artists of Fine Art	2524	⬇ 32	⬇ 13	⬇ 4				90.9	9.1
168	Noam Karni Team	2360	⬆ 54	⬆ 19	⬆ 4				67.0	33.0
169	VRS_SE	2359	⬆ 17						66.8	33.2
170	Korea.Prime	2330	⬆ 28	⬆ 19					67.0	32.9
171	Saudi Primes	2268	⬇ 1	⬇ 6		⬆ 1				100.0
172	alan145	2242	⬇ 10	⬇ 16	⬇ 4	⬇ 1	81.0	1.3		0.3	17.3
173	GIMPSMalaysia	2120	⬆ 47	⬆ 18	⬆ 16				75.4	24.5
174	México mágico	2094	⬆ 43	⬆ 14	⬇ 1				75.3	24.7
175	FactorMania	1919	⬆ 67	⬆ 15	⬆ 5			51.8			48.2
176	The Pensis	1869	⬆ 1	⬇ 3	⬇ 2					100.0
177	F=dp/dt	1845	⬆ 1	⬇ 3	⬇ 2				85.8	14.2
178	Obsidian	1821	⬆ 1	⬆ 1	⬇ 1					100.0
179	His Dark Materials	1758	⬇ 16	⬇ 12	⬇ 3					49.1	50.8
180	GIMPS_IOM	1712		⬇ 5	⬇ 2		100.0
181	BrainStone	1712	⬇ 13	⬇ 18	⬇ 2					100.0
182	The Prime Pioneers	1704	⬆ 11	⬆ 12	⬆ 5	⬆ 1	17.8	59.3		14.9	7.9
183	Crunching@EVGA	1668	⬆ 59	⬇ 7	⬇ 2	⬇ 1			100.0
184	RobotechResearch	1594	⬆ 58	⬇ 7	⬇ 2				100.0
185	San Francisco	1586	⬇ 1	⬇ 7	⬇ 2				100.0
186	cr_colorado	1549	⬆ 4	⬆ 17	⬆ 11					100.0
187	UCLA Linux Users Group	1536	⬇ 29	⬇ 16	⬇ 3				100.0
188	TimE4This	1481	⬇ 13	⬇ 6	⬇ 3					100.0
189	OcUK - Overclockers UK	1409	⬇ 15	⬇ 6	⬇ 3				100.0
190	Happy	1341	⬇ 9	⬇ 5	⬇ 2						99.9
191	GIMPS_KS	1095	⬆ 51	⬆ 40	⬆ 13	⬆ 1				97.2	2.8
192	Manri Costa Rica	984	⬇ 28	⬆ 3	⬇ 1	⬇ 1			77.7	22.3
193	GIMPS Asturias	794	⬆ 1	⬆ 4	⬇ 1				99.6	0.4
194	Weatopians	793	⬆ 1	⬆ 4	⬇ 1				99.7	0.3
195	Sæve Nordic Prime	792	⬆ 1	⬆ 4	⬇ 1				98.6
196	Math_Lovers	782	⬇ 8	⬇ 10	⬇ 6					100.0
197	hreid	776	⬇ 10	⬇ 16	⬇ 2				100.0
198	crazyBerlin	774	⬇ 56	⬆ 2	⬇ 2				100.0
199	ISISS Valle Seriana	770	⬇ 2	⬆ 2					98.4	1.6
200	NuggetFarms	764	⬇ 43	⬇ 20					100.0
201	Czech National Team	731	⬇ 51	⬇ 31			5.1			90.9	2.4
202	SGDynamo Dresden	581		⬆ 2			100.0
203	Team Bulgaria	574	⬇ 3	⬆ 2						37.0	62.9
204	TeamEc	552		⬆ 3	⬆ 1					75.6	24.4
205	PrimeObsession	539	⬆ 37	⬆ 31	⬆ 1					100.0
206	Morocco	531	⬆ 36	⬆ 30	⬆ 10					100.0
207	math.auth.gr	518	⬆ 2	⬆ 2						100.0
208	Join Us 😈	517	⬆ 2	⬆ 2			100.0
209	London Computation Club	478	⬆ 5	⬆ 4	⬆ 1					100.0
210	Team Dominik Radler	413	⬇ 4	⬇ 2	⬆ 1		100.0
211	Team Ribbs	336	⬇ 3	⬆ 3	⬆ 1					100.0
212	KnightLight	315	⬆ 7	⬆ 3	⬆ 1					99.3
213	Unteranger Primelurche	273	⬇ 10	⬇ 7	⬆ 1					100.0
214	Pi Rho	265	⬆ 28	⬆ 22	⬆ 21	⬆ 20				100.0
215	www.Adamek.biz	265	⬆ 6	⬆ 2		⬇ 1				100.0
216	Therian Primes	262	⬆ 26	⬆ 20	⬆ 1	⬇ 1				100.0
217	Math Teachers of the World	259	⬇ 5	⬆ 1	⬆ 1	⬇ 1			100.0
218	GIMPS Hams	253	⬆ 5	⬆ 1	⬆ 1	⬇ 1		100.0
219	The Goodest Team	253	⬆ 5	⬆ 1	⬆ 1	⬇ 1				100.0
220	Lithuania LT	247	⬇ 5	⬆ 1	⬆ 1	⬇ 1				100.0
221	Prime-UAE	246	⬇ 36	⬇ 10	⬆ 1	⬇ 1				100.0
222	/r/counting	243	⬆ 10	⬆ 4	⬆ 4	⬆ 2
223	DividerHunt	221	⬆ 7	⬆ 1		⬇ 2	100.0
224	yfinder	208	⬆ 2	⬇ 2		⬇ 2				100.0
225	Name (t) = A x e^kt	207	⬇ 12	⬇ 13	⬇ 16	⬇ 2				100.0
226	30thousandwon	193	⬇ 27	⬇ 3	⬇ 1	⬇ 1				100.0
227	GIMPS.Peace	122	⬆ 15	⬆ 2		⬇ 1	44.7	55.3
228	TeamUbuntu	121	⬆ 5			⬇ 1				100.0
229	FourthFloorFourEyes	46	⬇ 28	⬆ 1		⬇ 1	100.0
230	PROMYS	23	⬆ 4	⬆ 2		⬇ 1					100.0
231	ALGERIA	16	⬆ 6	⬆ 3		⬇ 1					100.0
232	sannerud.com	10	⬆ 3	⬆ 1		⬇ 1					100.0
233	CZAsTc	6	⬆ 8	⬆ 2		⬇ 1				97.2
234	Team Ireland	3	⬇ 51	⬇ 32		⬇ 1				98.7