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 2026-05-30 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	Slovakia	711290438	⬆ 1	⬆ 1			0.1	98.8	0.1		1.0
2	GIMPS.Russia	623744536	⬇ 1	⬇ 1			0.3		0.1		99.7
3	POLAND	131167438					0.8	96.3	0.4	0.1	2.5
4	Ars Technica Team Prime Rib	129757586	⬆ 2	⬆ 1				99.2		0.8
5	PrimeNet	122293867	⬇ 1	⬇ 1			0.2	98.1	0.7	1.0
6	-Too many Ones-	42033609	⬇ 1				0.1	64.0			35.8
7	GIMPSChina	21702799	⬆ 1	⬆ 1			65.0	21.4	4.1	0.5	8.9
8	szerverem.hu	15235700	⬆ 7	⬆ 4			2.8	23.6	66.6	4.0	3.0
9	GW's legions	13729943	⬆ 2	⬆ 1	⬆ 1			0.8	36.7	1.6	60.8
10	UCM-curtisc	11782473	⬆ 2	⬆ 3	⬆ 1				99.3	0.7
11	Team-Deutschland	11253901	⬆ 2		⬆ 1		2.7	54.2	0.8	0.1	42.1
12	More Power!!!	10845601	⬇ 3	⬆ 2	⬆ 1		17.0	70.4	2.6	2.1	7.9
13	One Man Team	8736357	⬇ 3	⬇ 4	⬇ 4			99.2	0.8
14	TeamUK	7121584		⬆ 1			49.2	2.8	18.9	1.5	27.5	0.1
15	Porta Kruse	6392078	⬆ 1	⬆ 1			2.0	0.5			91.2	6.1
16	GPU to 72	4679604	⬆ 1	⬆ 1			51.1	27.9	0.4	4.0	16.4
17	Numberphile	4105269	⬆ 2	⬆ 1			13.8	33.0	15.3	4.4	33.2
18	UW Eau Claire	3207959	⬆ 10	⬆ 2			89.9		7.4	2.7
19	tsc	2809357	⬆ 1		⬆ 1		70.5	3.6	1.1	0.4	24.4
20	Argentina	2372979	⬆ 207	⬆ 4	⬆ 1		92.4		7.6
21	UKRAINE	2336798		⬆ 1	⬆ 1		14.8	8.3	64.2	12.7
22	SpongeBob SquarePants	1981577	⬇ 4	⬇ 1	⬆ 1			30.4	58.7	10.9
23	Wikipedia	1949943			⬆ 1		58.1	34.1	4.6	2.1	0.8
24	Swedes Of Primes	1220566		⬆ 4	⬆ 1		0.5	79.8	16.7	2.9
25	GIMPS.Occitania	1204166	⬆ 2	⬆ 4	⬆ 1			4.4				95.6
26	GIMPS.Korea	1153735	⬆ 6	⬆ 4	⬆ 1		88.5	4.9	4.4	0.8	1.2
27	Dutch Power Cows	1093051	⬇ 5	⬇ 2	⬆ 1		44.3	15.0	2.0	2.3	36.4
28	MBAi.Cloud	838410	⬆ 1	⬆ 3	⬆ 1				99.9	0.1
29	unRAID	579016	⬇ 22	⬇ 22	⬇ 10			82.4	15.9	1.2	0.4
30	MATHSareREAL	578886	⬆ 1	⬆ 2			96.2		2.5	1.3
31	citizenscience.ru	502445	⬆ 4	⬆ 2			87.9	3.2	4.7	0.8	3.1	0.3
32	Buhr	478254	⬆ 4	⬆ 3			54.3	4.5	17.3	5.5	18.4
33	GIMPS.Japan	416570	⬇ 7	⬇ 6			23.4		29.8	8.5	38.2
34	Rechenkraft.net	395936	⬇ 1	⬆ 2			1.4	53.7	6.2	5.8	32.8
35	Terry Kim Team	380182	⬇ 1	⬆ 2	⬆ 1		96.0		3.0	0.7
36	MOXA	361373	⬇ 6	⬇ 2	⬇ 1		99.0		0.9	0.2
37	Colorado School of Mines	343067	⬆ 11	⬆ 2			92.7		5.9	1.4
38	S485122	305428	⬇ 1					95.0		5.0
39	404 - "Primes not Found"	280403	⬆ 6	⬆ 3	⬆ 1		80.3		19.5	0.2
40	Smoke-it	265516	⬇ 2		⬇ 1		90.5	7.1	1.8
41	nranks	238560	⬇ 1	⬆ 5			31.5	0.5	3.0	0.4	64.7
42	GIMPS.USA	238214	⬇ 17	⬇ 16			60.9	3.5	25.5	7.5	2.0
43	YahsTeam	234373	⬇ 4	⬇ 2			88.2		9.4	2.4
44	NerdyGirls	199767	⬇ 3	⬆ 1	⬆ 1			42.5	6.9	50.6
45	GIMPS Team Philippines	198570	⬇ 3	⬇ 1	⬇ 1		56.5		8.3	1.7	29.8
46	NanJing Tech	188369	⬆ 49	⬆ 4	⬆ 1		27.5		68.6	3.9
47	Team Tartan	181507	⬇ 1	⬆ 1	⬆ 1				77.4	22.6
48	Canada	180357	⬇ 4	⬇ 1	⬇ 2			2.2	70.0	27.8
49	OverclockerAustralia	151617	⬆ 1				57.9		19.0	19.6
50	GIMPS.NZ	133665	⬆ 2	⬆ 1			79.0		11.1	9.8
51	Team China	126961		⬆ 1	⬆ 1				99.7	0.3
52	Unicamp	125513	⬆ 1	⬆ 1	⬆ 1		69.0		26.4	4.6
53	GIMPS.France	119705	⬆ 5	⬆ 1	⬆ 1		9.3	67.0	4.7	7.3	11.5
54	randomteam	108434	⬇ 11	⬇ 11	⬇ 3						100.0
55	SASAKI	104360	⬇ 1	⬆ 2			100.0
56	IOTA	102090	⬆ 32	⬆ 7	⬆ 1		95.1		3.3	1.6
57	GIMPS.Portugal	99724	⬆ 53	⬆ 21	⬆ 1	⬆ 1	43.2	52.1		4.7
58	GIMPS China	99594	⬇ 11	⬇ 3	⬇ 2	⬇ 1	89.8		5.1		4.8
59	AMD Users	91555	⬆ 6	⬆ 1	⬆ 1		50.9	0.6	10.4	37.6	0.4
60	BitMEX Research	89728	⬇ 11	⬇ 4	⬇ 1				96.4	3.6
61	Wisconsin	88934	⬇ 4	⬇ 3			41.3		30.5	28.2
62	UIUC	86528	⬇ 1	⬇ 1					68.7	31.2
63	SHADO	79505	⬇ 3	⬆ 1	⬆ 3				62.3	18.8	11.4	1.5
64	Cap'n Entropy's Cavalcade of Wonderment	77201	⬇ 8	⬇ 5	⬇ 1		73.6	6.8	17.2	2.4
65	Net-Work	76927	⬇ 3		⬇ 1		5.0	1.9			86.0
66	Wile E. Coyote	74079	⬆ 8	⬆ 1	⬆ 1				76.1	0.4	23.4
67	Eratosthenes Sieve	73498	⬇ 4	⬇ 1	⬇ 2		0.7		95.3	3.9
68	Esperanto	67425	⬇ 4		⬆ 1	⬆ 1		26.0	4.8	69.1	0.2
69	EgyptianPolymaths	67356	⬇ 14	⬇ 7	⬇ 1	⬇ 1		64.1			22.9
70	AJ	66113	⬇ 1	⬇ 1					75.5	24.5
71	ParadoxZ Commando	62510	⬇ 1		⬆ 2				74.5	25.5
72	S147127	62029	⬆ 3	⬇ 2	⬇ 1		30.5		18.3	51.2
73	Team Israel	61065	⬇ 5	⬇ 1	⬇ 1		97.0		2.6	0.4
74	Hungary	53350	⬇ 15		⬆ 1				4.5	1.9	93.3
75	Team_Italia	52136	⬇ 4	⬇ 2	⬇ 1		3.3		64.1	25.9	2.4	3.5
76	VIPR	51782	⬆ 23	⬆ 11	⬆ 4		85.9		9.2	4.7
77	ComputerraRU	48328		⬇ 1		⬆ 1	21.3		67.3	11.4
78	Brno University of Technology	47927	⬇ 6	⬇ 3	⬇ 2	⬇ 1		9.4	72.2	18.4
79	GIMPS.NEO	45584	⬇ 12	⬇ 2	⬇ 1				78.5	21.5
80	Team Viet Nam	41552	⬇ 2		⬆ 1		29.4		32.0	27.4	11.2
81	Team Belgium	41405	⬇ 8	⬇ 2	⬇ 2		1.3	4.6	30.7	20.7	42.8
82	HardOCP	37195	⬆ 3	⬇ 1	⬆ 1				73.5	26.5
83	Turku	36285	⬆ 8		⬇ 1				100.0
84	huskers-gimps	35919		⬆ 2					74.5	25.5
85	Team H	34553	⬇ 4				13.1		86.4	0.5
86	Debian	33893	⬇ 3	⬇ 2					99.0	1.0
87	ᕙ(⇀‸↼‶)ᕗ	31551	⬆ 6	⬆ 2			0.7		98.9	0.4
88	Hermessz	31411	⬇ 2				65.1		34.9
89	baraCUDA	29906	⬆ 138	⬆ 133					100.0
90	Small-Team-2000	29393							10.7	89.3
91	socal_prime	26936	⬇ 2						72.5	27.3	0.1
92	Channel 4	26541	⬆ 2			⬆ 1			81.1	18.9
93	The Fellowship of Infinity	25773	⬆ 3	⬆ 1		⬇ 1			99.5	0.5
94	MurrayInfoSys	24892	⬆ 7	⬆ 3	⬆ 1				68.9	31.1
95	Costa Rica	23902	⬇ 3	⬆ 1	⬇ 1				75.3	24.4
96	LTT fans	22365	⬇ 20	⬇ 14	⬆ 1		37.5				62.5
97	Georgia Tech	20319	⬇ 31	⬆ 6	⬆ 1				100.0
98	SpartaAlumni	19031	⬆ 5		⬆ 3				69.9	30.1
99	Team Retired	18843	⬇ 2		⬆ 1				29.1	11.3
100	Aiblspitz	18700	⬆ 33	⬆ 5	⬆ 3		0.2	78.5	8.4	12.9
101	A Single Engineer	18488	⬆ 1	⬇ 1	⬇ 2				75.8	24.2
102	PrimitiveRootsCircle	17830	⬇ 4		⬆ 2		18.0		53.3	26.0	2.7
103	MES-Team	17593	⬇ 21	⬇ 10	⬇ 7		68.3	8.1		23.6
104	GIMPS Romania	17357	⬆ 41		⬇ 2		74.1		22.9	3.0
105	LimePrime	15012	⬇ 18	⬇ 4				9.4	78.4	12.2
106	Spain	14509	⬆ 3	⬆ 3					70.3	29.7
107	NUST	14223	⬆ 9	⬆ 1	⬆ 1		16.4	74.6	5.9	3.0
108	Com Systems (RU)	14215	⬆ 21	⬆ 8	⬆ 1				65.9	34.1
109	Ozzie Prime	13690	⬇ 4	⬇ 2	⬆ 1			2.7	40.3	15.7		41.2
110	moeses	13371	⬆ 3	⬆ 2	⬆ 1				99.1	0.9
111	Nerdfighters for Mersenne Primes	12420	⬇ 3	⬆ 3	⬆ 1				88.8	11.2
112	Quantus	12170	⬇ 6	⬆ 3	⬆ 2		10.0		13.0	25.1		51.9
113	TurkishMath	11994	⬆ 23	⬆ 9	⬆ 3				87.1	12.9
114	RobotechResearch	11807	⬆ 21	⬆ 5	⬆ 3				47.5	52.5
115	Team Slovenia	11648	⬇ 3	⬆ 2	⬇ 2				66.9	33.0
116	Portland State University	11319	⬇ 16	⬇ 5	⬇ 9	⬆ 1		40.2	43.2	16.6
117	Team Finland	11275	⬇ 37	⬇ 7	⬇ 2	⬇ 1	1.1		96.5		2.4
118	SETI.Germany	11194	⬇ 7	⬇ 12				8.5	14.2	77.4
119	FREE ROBUX	10852	⬆ 2	⬆ 1					100.0
120	Royal Military College of Canada	10691	⬆ 2	⬆ 1			89.7		7.9	2.4
121	Granada	10266	⬇ 3	⬆ 3			26.6		23.0	49.7
122	Syntony	9641	⬆ 5	⬆ 4	⬆ 2					100.0
123	GIMPS.Taiwan	9377	⬇ 9		⬇ 1				85.8	13.6	0.1
124	JiBoTeam	8979	⬆ 7	⬆ 4	⬆ 4	⬆ 3				100.0
125	Mensa	8910	⬇ 8	⬆ 2	⬆ 1	⬇ 1			88.2	11.8
126	Shaffer's Studio	8825	⬇ 1	⬆ 3	⬆ 1	⬇ 1			88.2	11.7
127	Die Zeitfinder	8635	⬆ 3	⬆ 4	⬆ 2	⬆ 1			91.0	9.0
128	University of Waterloo	8354	⬆ 11	⬆ 8	⬆ 2	⬆ 1			100.0
129	Team Austria	8298	⬇ 50	⬇ 34	⬇ 6	⬇ 3	76.9	2.5	20.6
130	Team Norway	8214	⬇ 23	⬇ 17	⬇ 5		76.4			6.2	17.1
131	Triangle	7873	⬆ 1	⬇ 1					98.9	1.1
132	math.auth.gr	7704	⬆ 53	⬆ 1					100.0
133	Team Splunk	7605	⬆ 5	⬆ 1				28.1	71.9
134	FreeBSD	7519	⬇ 11	⬆ 4					73.6	26.4
135	Prime Rib	7360	⬆ 6	⬆ 6	⬆ 3				96.7	3.3
136	Abacus	7130	⬇ 16	⬇ 4	⬇ 1				98.9	1.0
137	Brasil	7046	⬆ 3	⬆ 2	⬇ 1				77.9	22.0
138	Pavlicin	6707	⬆ 89	⬆ 84	⬆ 3		99.9	0.1
139	FactorMania	6572	⬆ 17	⬆ 6	⬆ 1	⬆ 1		56.9			43.1
140	Hyperion	6571	⬇ 21	⬇ 5	⬇ 3	⬇ 1				20.6
141	irowiki	6539	⬇ 4	⬇ 1	⬇ 2					100.0
142	Team Christensen	6134	⬆ 1	⬆ 1						100.0
143	México mágico	5803	⬆ 16	⬆ 13					81.9	18.1
144	Elisabeth-von-Thadden-Schule	5505							42.1	57.9
145	Hong Kong GIMP	5486	⬆ 5	⬆ 7	⬆ 8				71.5	28.5
146	Politeknik Banting, Selangor	5263	⬇ 31	⬇ 21	⬇ 1		79.6		15.0	5.4
147	KnightLight	5257	⬆ 60	⬇ 1	⬇ 1					100.0
148	Arpan Sen Labs	5092	⬆ 61	⬆ 12	⬆ 2				57.2	42.8
149	nmbarek_team	4951	⬇ 1		⬇ 2				99.8	0.2
150	teamMALI	4927	⬇ 1	⬆ 5	⬇ 2				79.5	20.5
151	Crunching@EVGA	4888	⬆ 6	⬇ 1	⬇ 2				99.7	0.3
152	Korea.Prime	4702	⬆ 8	⬆ 10					66.8	33.1
153	The_Dude_Abides	4350	⬇ 6	⬆ 1	⬆ 2	⬆ 1	10.3			74.1
154	Noam Karni Team	3962	⬆ 4	⬆ 4	⬆ 2	⬆ 1			79.7	20.3
155	Phi Kappa Theta	3922	⬆ 9	⬆ 6	⬆ 2	⬆ 1			61.6	38.4
156	Olympic College	3828	⬇ 3	⬆ 1	⬆ 2	⬆ 1				100.0
157	Server66	3762	⬇ 31	⬇ 20	⬆ 2	⬆ 1	100.0
158	SU Prime Pirates	3638	⬇ 16	⬇ 16	⬇ 4	⬇ 5			87.1	12.9
159	YESHUA IS THE MESSIAH	3376	⬆ 68	⬆ 17	⬆ 3				99.0	1.0
160	zeit	3309	⬇ 9	⬇ 1	⬆ 3		7.4			92.6
161	MES22-Team	3277	⬇ 37	⬇ 13	⬆ 3	⬆ 1	100.0
162	Furry Primes	3258	⬇ 28	⬇ 9	⬇ 1	⬇ 1	84.2			15.8
163	Morocco	3243	⬆ 25	⬆ 4	⬆ 2				50.5	49.5
164	Kabylie	3113	⬇ 10		⬆ 2		15.2	2.4	50.0	32.4
165	Team_Brazil	2999	⬇ 2		⬆ 2		83.1	0.2		16.7
166	GIMPS.Hong Kong	2871	⬇ 4	⬇ 3	⬇ 6		2.7		56.2	41.1
167	DePaul MAT 141	2553	⬆ 60	⬆ 55	⬆ 9				99.4	0.6
168	Pi Rho	2499	⬇ 2	⬇ 2					67.1	32.9
169	GIMPSMalaysia	2394	⬇ 1	⬇ 1					66.8	33.2
170	VRS_SE	2364	⬇ 1	⬇ 1					66.7	33.3
171	GIMPS_KS	2199	⬆ 1						36.5	62.0	1.4
172	The Prime Pioneers	1919	⬇ 5	⬆ 2	⬆ 1			100.0
173	The Pensis	1869	⬆ 1	⬆ 2	⬆ 1					100.0
174	3DCenter.org	1634	⬇ 19	⬇ 4	⬆ 1						100.0
175	San Francisco	1586	⬆ 6	⬆ 5	⬆ 2				100.0
176	hreid	1575	⬆ 18	⬆ 5	⬆ 2				100.0
177	Danpi for GIMPS	1572	⬇ 25	⬇ 26	⬇ 26		100.0
178	cr_colorado	1549	⬆ 5	⬆ 4	⬆ 1					100.0
179	Obsidian	1542	⬇ 3	⬇ 6	⬆ 1					100.0
180	I Love Canadian Natural Resources	1514	⬇ 15	⬇ 8	⬆ 1					100.0
181	youngfun429	1500	⬇ 53	⬇ 34	⬇ 9				52.1	47.9
182	CZAsTc	1448	⬆ 2	⬆ 2					99.5	0.5
183	WSU Cougars	1390	⬇ 37	⬆ 2					55.3	44.6
184	Join Us 😈	1060	⬆ 16	⬆ 13	⬆ 2		66.8			33.2
185	Subprime Searches	1032	⬇ 12	⬇ 7		⬆ 1	75.2			24.8
186	TunisianTeam	1031	⬇ 16		⬆ 1	⬆ 1			75.0	25.0
187	GIMPS_IOM	1013	⬇ 8	⬇ 10	⬇ 3	⬇ 2	100.0
188	Therian Primes	1007	⬆ 10	⬇ 1				14.6		52.4	33.0
189	Czech National Team	903	⬆ 15		⬆ 1		4.1		91.8	0.8	2.0
190	TimE4This	876	⬇ 4		⬆ 1					100.0
191	RafaÅ‚ HacuÅ›	860	⬆ 36	⬆ 31	⬆ 33				100.0
192	AWC	801	⬇ 2	⬇ 1					100.0
193	F=dp/dt	799	⬇ 18	⬇ 14					99.3	0.7
194	GIMPS Asturias	794	⬇ 3	⬇ 2					99.6	0.4
195	Weatopians	793	⬇ 3	⬇ 2					99.7	0.3
196	His Dark Materials	660	⬇ 14	⬇ 8	⬆ 1	⬆ 1				33.0	66.9
197	SGDynamo Dresden	565	⬆ 4	⬆ 1	⬆ 1	⬆ 1	100.0
198	PrimeObsession	539	⬆ 4	⬆ 1	⬆ 1	⬆ 1				100.0
199	Zorin OS Crew	469	⬇ 21	⬇ 16	⬇ 3	⬇ 3				100.0
200	GIMPS.Romania	422	⬆ 27	⬆ 22					100.0
201	alan145	390	⬇ 14	⬇ 1			100.0
202	Optimists Prime	365	⬇ 25	⬇ 6				100.0
203	PARG team	298	⬆ 24	⬆ 16						92.8	7.2
204	Yurunago	276	⬆ 4	⬇ 1						100.0
205	Team Dominik Radler	275		⬇ 3			100.0
206	Vegan	275	⬆ 21	⬇ 2						100.0
207	Byberg Nordic Prime	265	⬇ 14	⬇ 2						100.0
208	FDY	265	⬆ 19	⬆ 14						100.0
209	www.Adamek.biz	265	⬆ 1	⬇ 3						100.0
210	GIMPS Hams	253	⬆ 3	⬇ 2	⬆ 1	⬆ 1		100.0
211	miiro	223	⬆ 8	⬆ 2	⬆ 5	⬆ 4	100.0
212	DividerHunt	221	⬆ 2	⬇ 3			100.0
213	Manri Costa Rica	213	⬆ 2	⬇ 3						100.0
214	/r/counting	184	⬇ 8	⬇ 2	⬆ 1
215	GIMPS.Peace	122	⬆ 5		⬆ 2	⬆ 1	44.7	55.3
216	TeamUbuntu	121	⬆ 5		⬆ 2	⬆ 1				100.0
217	sannerud.com	108	⬆ 5		⬆ 2	⬆ 1	43.1				19.4	37.5
218	Team Bulgaria	91		⬇ 4	⬆ 2	⬆ 1					100.0
219	PROMYS	23	⬆ 6	⬇ 1	⬆ 2	⬆ 1					100.0
220	yfinder	1	⬆ 6	⬆ 1	⬆ 2	⬆ 1				100.0