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 2026-07-17 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	Slovakia	602372398	⬆ 1				0.1	97.5	0.1		2.3
2	GIMPS.Russia	350987688	⬇ 1				0.4		0.1		99.5
3	PrimeNet	149930431		⬆ 1			0.2	80.0	0.6	0.8	18.4
4	Ars Technica Team Prime Rib	142727197	⬆ 2	⬇ 1				99.2		0.7
5	POLAND	112052946	⬇ 1				0.9	95.2	0.5	0.1	3.3
6	-Too many Ones-	64258949	⬇ 1					77.4			22.6
7	Team#1	23007900	⬆ 7	⬆ 1			1.9	16.6	44.1	35.5	2.0
8	GIMPSChina	19882731		⬇ 1			57.3	24.6	4.6	0.7	12.8
9	GW's legions	13967815	⬆ 1					0.9	37.8	1.7	59.6
10	Numberphile	12529611	⬆ 8	⬆ 6	⬆ 2		3.2	17.7	4.9	1.6	72.5
11	UCM-curtisc	12080316	⬆ 1	⬇ 1	⬇ 1				99.2	0.8
12	Team-Deutschland	11857329	⬇ 1	⬇ 1	⬇ 1		2.5	58.2	1.0	0.1	38.1
13	More Power!!!	10194263		⬇ 1			17.2	69.2	2.8	2.4	8.4
14	TeamUK	6756938	⬆ 1				47.0	2.7	20.6	1.6	27.9	0.1
15	Porta Kruse	6357930	⬆ 1				2.0	0.5			91.2	6.2
16	One Man Team	6198387	⬇ 7	⬇ 3				99.1	0.9
17	GPU to 72	5284040					49.6	30.2	0.9	3.4	15.6
18	UW Eau Claire	3394335	⬆ 3		⬆ 1	⬆ 1	90.5		7.0	2.6
19	tsc	3382672			⬇ 1	⬇ 1	61.4	2.7	1.0	0.4	34.5
20	UKRAINE	2682703	⬆ 2				7.6	5.4	76.9	10.0
21	Argentina	2563445	⬆ 9				92.1		7.9
22	Wikipedia	1921786	⬆ 1				57.6	34.7	4.6	2.0	0.8
23	GIMPS.Korea	1452665	⬆ 6	⬆ 1			88.3	4.7	3.6	0.9	2.3
24	SpongeBob SquarePants	1236838	⬇ 4	⬇ 1				30.2	62.8	7.0
25	GIMPS.Occitania	1187674	⬆ 3					4.4				95.6
26	Swedes Of Primes	1062292	⬆ 1				1.5	78.0	17.4	3.2
27	Dutch Power Cows	1059154	⬇ 3				42.4	10.7	1.5	2.4	42.9
28	MBAi.Cloud	831620	⬆ 3						99.9	0.1
29	404 - "Primes not Found"	670547	⬆ 15	⬆ 5			90.5		9.4	0.1
30	MATHSareREAL	578886	⬆ 2	⬇ 1			96.2		2.5	1.3
31	Buhr	505687	⬆ 4	⬇ 1			51.2	5.0	16.6	5.2	22.0
32	GIMPS.USA	458607	⬇ 7	⬆ 8			31.6	46.6	15.3	3.7	2.4
33	citizenscience.ru	426714		⬇ 1			86.4	2.3	6.4	1.0	3.5	0.4
34	Colorado School of Mines	400020	⬆ 6	⬆ 2			86.9		11.8	1.3
35	Rechenkraft.net	369891	⬆ 1				0.2	51.4	6.0	7.0	35.4
36	Terry Kim Team	365540	⬆ 1	⬆ 1	⬆ 1		95.6		3.3	0.7
37	GIMPS.Japan	363897	⬇ 11	⬇ 4	⬇ 1		37.2		33.7	11.6	17.3
38	MOXA	356171	⬇ 4				99.2		0.7	0.1
39	S485122	304351	⬇ 1					95.0		5.0
40	YahsTeam	247327	⬆ 1	⬆ 2	⬆ 2		87.9		9.6	2.5
41	unRAID	243351	⬇ 34	⬇ 10	⬇ 1			66.1	30.3	2.9	0.6
42	nranks	236934	⬆ 4	⬆ 1	⬆ 1		31.3	0.5	2.7	0.4	65.1
43	Smoke-it	231207	⬇ 4	⬇ 2	⬇ 2		90.2	7.8	1.7
44	NanJing Tech	216777	⬆ 9	⬆ 1			24.2		72.4	3.4
45	GIMPS Team Philippines	205721	⬇ 2	⬆ 1			51.0		10.0	1.9	32.8
46	NerdyGirls	195688	⬇ 1	⬇ 2				43.4	4.9	51.7
47	Canada	183561					7.7	1.5	65.9	24.9
48	Team Tartan	170034							76.9	23.1
49	OverclockerAustralia	146205					60.1		14.4	20.5
50	GIMPS.NZ	136099					79.3	0.2	11.0	9.4	0.1
51	Team China	128130	⬆ 1						99.7	0.3
52	Unicamp	125176	⬇ 1				66.9		29.6	3.5
53	IOTA	121905	⬆ 13	⬆ 1	⬆ 1		95.2		3.4	1.4
54	GIMPS.France	116369	⬆ 3	⬇ 1	⬇ 1		9.6	68.9	4.2	5.3	11.9
55	GIMPS.Portugal	100654	⬆ 34	⬆ 1	⬆ 3		50.1	47.7		2.2
56	AMD Users	95692	⬆ 6	⬆ 1	⬇ 1		48.7	0.6	9.9	40.3	0.4
57	VIPR	94945	⬆ 30	⬆ 13	⬆ 2		93.1		5.0	1.8
58	UIUC	92574	⬆ 3	⬆ 2	⬇ 1	⬆ 1			67.1	32.9
59	SASAKI	91719	⬇ 3	⬇ 4	⬇ 3	⬇ 1	100.0
60	SHADO	83301	⬆ 3	⬆ 1					65.6	16.6	10.9	1.2
61	Wisconsin	81406	⬇ 3	⬇ 2			35.8		32.9	31.3
62	Wile E. Coyote	78743	⬆ 6	⬆ 1	⬆ 1				74.7	0.4	24.9
63	GIMPS China	78332	⬇ 8	⬇ 5	⬇ 1		83.6		10.0	0.1	6.0
64	Net-Work	73868					5.8	2.1			83.1
65	Eratosthenes Sieve	73272					0.8		95.3	3.9
66	randomteam	71704	⬇ 24	⬆ 1							100.0
67	S147127	67524	⬆ 7	⬆ 4	⬆ 2		32.3		22.6	45.1
68	Esperanto	65640	⬇ 1		⬇ 1			26.0	4.9	69.0	0.1
69	ParadoxZ Commando	63253	⬆ 3	⬆ 3	⬆ 2				72.4	27.6
70	Team_Italia	63060	⬆ 1	⬆ 5	⬆ 3		3.0	0.6	65.9	23.2	3.4	2.4
71	Cap'n Entropy's Cavalcade of Wonderment	62376	⬇ 12	⬇ 5	⬇ 3		70.5	8.0	18.1	3.4
72	Team Israel	59766	⬆ 1	⬇ 3		⬆ 1	96.9		2.7	0.4
73	BitMEX Research	59651	⬇ 19	⬇ 11	⬇ 3	⬇ 1			94.7	5.3
74	Hungary	52997	⬇ 4	⬆ 2	⬆ 2	⬆ 1			4.6	1.4	93.9
75	EgyptianPolymaths	52824	⬇ 15	⬇ 1		⬇ 1		81.7
76	AJ	52719	⬇ 7	⬇ 3	⬇ 2				74.0	26.0
77	Brno University of Technology	46894	⬇ 1					4.6	75.7	19.7
78	ComputerraRU	44653	⬇ 1				23.9		72.4	3.7
79	NUST	43924	⬆ 28	⬆ 28	⬆ 10		59.6	37.5	1.9	1.0
80	GIMPS.NEO	38699	⬇ 5	⬇ 1					80.8	19.2
81	Team Belgium	38184	⬇ 3		⬇ 2		1.4	2.5	31.2	26.6	38.2
82	huskers-gimps	36371	⬆ 2	⬆ 2	⬆ 1	⬆ 1			74.7	25.3
83	Turku	36285		⬇ 1	⬇ 2	⬇ 1			100.0
84	Team Viet Nam	35013	⬇ 5	⬇ 4	⬇ 2		34.9		38.0	27.1
85	Debian	33368	⬇ 3			⬆ 1			98.2	1.8
86	Hermessz	32814		⬆ 2	⬆ 1	⬆ 1	64.1		35.9
87	Team H	32599	⬇ 2		⬇ 1	⬇ 2	13.5		85.9	0.6
88	HardOCP	32534	⬇ 7	⬇ 5	⬇ 4				72.1	27.9
89	ᕙ(⇀‸↼‶)ᕗ	32325	⬇ 1	⬇ 3	⬇ 1		0.7		98.9	0.4
90	baraCUDA	29906	⬆ 132	⬇ 1					100.0
91	Aiblspitz	27466	⬆ 20	⬆ 5	⬆ 4		0.1	88.1	2.9	8.9
92	The Fellowship of Infinity	27356	⬆ 4						99.5	0.5
93	Channel 4	27356		⬇ 2					81.6	18.4
94	Costa Rica	27118	⬆ 1	⬆ 1	⬆ 2	⬆ 2			79.1	20.7
95	Small-Team-2000	27024	⬇ 4	⬇ 5	⬇ 4	⬇ 1			2.9	97.1
96	MurrayInfoSys	26830	⬆ 2	⬇ 2	⬇ 2	⬇ 1			67.1	32.9
97	socal_prime	23747	⬇ 7	⬇ 4					75.9	23.9	0.1
98	Georgia Tech	20319	⬆ 5	⬇ 1					100.0
99	LimePrime	19080	⬇ 2	⬆ 4				7.4	82.9	9.7
100	Team Retired	17877	⬇ 1	⬇ 1					30.7	11.9
101	A Single Engineer	17718		⬇ 3					74.7	25.3
102	Com Systems (RU)	17650	⬆ 14	⬆ 2	⬆ 1	⬆ 1			70.9	29.1
103	GIMPS Romania	17357	⬆ 12	⬇ 2	⬇ 1	⬇ 1	74.1		22.9	3.0
104	SpartaAlumni	15994	⬇ 2	⬇ 2	⬆ 1				73.6	26.4
105	PrimitiveRootsCircle	15767	⬇ 5	⬇ 5	⬇ 1		15.4		50.2	31.3	3.1
106	TurkishMath	14504	⬆ 20	⬆ 2					94.6	5.4
107	Spain	13473	⬇ 3	⬇ 1					69.9	30.1
108	RobotechResearch	13394	⬆ 19	⬆ 2					47.8	52.2
109	moeses	12609	⬆ 5						98.9	1.1
110	Quantus	12170	⬆ 3	⬆ 3			10.0		13.0	25.1		51.9
111	Ozzie Prime	12077	⬇ 5						39.3	15.5		45.3
112	Portland State University	11107	⬇ 4	⬆ 7				40.9	44.6	14.5
113	FREE ROBUX	10852	⬆ 7	⬆ 3	⬆ 2				100.0
114	Nerdfighters for Mersenne Primes	10792	⬇ 4	⬇ 2	⬇ 1				95.1	4.9
115	Team Slovenia	10711	⬆ 2	⬇ 1	⬆ 1				65.5	34.5
116	Royal Military College of Canada	10691	⬆ 5	⬆ 1	⬆ 1		89.7		7.9	2.4
117	Team Finland	10611	⬇ 8	⬆ 1	⬆ 1	⬆ 1	1.5		96.0		2.5
118	MES-Team	10557	⬇ 26	⬇ 13	⬇ 4	⬇ 1	66.9	7.3		25.9
119	University of Waterloo	9703	⬆ 19	⬆ 2					94.4	5.6
120	Shaffer's Studio	9562	⬆ 10	⬆ 2	⬆ 3				89.9	10.0
121	Syntony	9319	⬆ 4	⬆ 4						100.0
122	LTT fans	9056	⬇ 42	⬆ 4			92.5				7.5
123	Die Zeitfinder	8726	⬆ 6	⬆ 5	⬆ 1				91.1	8.9
124	math.auth.gr	8551	⬆ 12	⬆ 5	⬆ 3	⬆ 1			100.0
125	Pavlicin	8407	⬆ 97	⬆ 5	⬆ 3	⬆ 1	79.7	0.1	20.2
126	Mensa	8400	⬇ 3	⬆ 1	⬆ 3	⬆ 1			84.3	15.7
127	JiBoTeam	8399	⬆ 1	⬇ 3	⬇ 1	⬇ 3				100.0
128	FreeBSD	8386	⬆ 4	⬆ 3	⬆ 2				75.9	24.1
129	SETI.Germany	8289	⬇ 24	⬇ 14	⬇ 9			11.4		88.6
130	Server66	7983	⬆ 9	⬆ 14	⬆ 2	⬆ 2	100.0
131	Granada	7848	⬇ 7	⬇ 11	⬇ 6	⬇ 1	26.6		20.3	52.3
132	The_Dude_Abides	7820	⬆ 20	⬆ 22	⬇ 1	⬇ 1	2.6		31.9	48.7	1.3
133	Prime Rib	7372	⬆ 7	⬇ 1	⬆ 4	⬆ 4			96.8	3.2
134	Abacus	7148	⬇ 3		⬇ 1	⬇ 1			98.8	1.2
135	Triangle	7147			⬇ 1	⬇ 1			98.6	1.4
136	GIMPS.Taiwan	7047	⬇ 17	⬇ 13	⬇ 1	⬇ 1			81.2	18.1	0.1
137	Arpan Sen Labs	6686	⬆ 28	⬆ 4	⬇ 1	⬇ 1			55.4	44.6
138	FactorMania	6572	⬆ 15	⬇ 2				56.9			43.1
139	Brasil	6384	⬆ 3	⬇ 1	⬆ 5				73.9	26.0
140	Team Norway	6097	⬇ 28	⬇ 7	⬇ 1		73.8			8.4	17.4
141	irowiki	5988		⬇ 4						100.0
142	Team Christensen	5815	⬆ 2	⬇ 3	⬇ 2					100.0
143	México mágico	5568	⬆ 13	⬇ 3	⬇ 1				85.3	14.6
144	Korea.Prime	5515	⬆ 18	⬆ 8	⬆ 5				71.5	28.5
145	Morocco	5431	⬆ 28	⬆ 1	⬇ 2				60.2	39.8
146	KnightLight	5032	⬆ 1	⬇ 1	⬇ 1					100.0
147	nmbarek_team	4942	⬆ 3	⬆ 2	⬇ 1				100.0
148	DePaul MAT 141	4934	⬆ 74	⬆ 2	⬇ 1				99.6	0.4
149	Crunching@EVGA	4888	⬆ 2	⬆ 2	⬇ 1				99.7	0.3
150	YESHUA IS THE MESSIAH	4648	⬆ 29	⬆ 3					99.2	0.8
151	Hong Kong GIMP	4462	⬆ 4	⬇ 8	⬆ 1	⬆ 1			70.4	29.5
152	teamMALI	4159	⬇ 4	⬆ 3	⬆ 1	⬆ 1			75.7	24.3
153	Elisabeth-von-Thadden-Schule	4043	⬇ 8	⬇ 11	⬇ 2	⬇ 2			57.3	42.7
154	Noam Karni Team	3963	⬆ 5	⬆ 2					79.7	20.3
155	Phi Kappa Theta	3761	⬆ 5	⬆ 4	⬆ 1				66.0	33.9
156	Hyperion	3562	⬇ 22	⬇ 8	⬇ 1					15.7
157	Politeknik Banting, Selangor	3101	⬇ 35	⬆ 3			65.4		25.5	9.1
158	Olympic College	3075	⬇ 1	⬇ 1						100.0
159	GIMPS.Hong Kong	2626	⬆ 2	⬆ 5	⬆ 1		2.1		61.4	36.4
160	Pi Rho	2499	⬆ 8	⬆ 5	⬆ 1				67.1	32.9
161	GIMPSMalaysia	2394	⬆ 8	⬆ 5	⬆ 1				66.8	33.2
162	zeit	2322	⬇ 4		⬆ 1		11.8			88.2
163	CZAsTc	2288	⬆ 22	⬆ 16	⬆ 1				99.5	0.4
164	Team Austria	2199	⬇ 70	⬆ 5	⬆ 3		12.8	9.5	77.7
165	GIMPS_KS	2199	⬆ 7	⬆ 5	⬆ 3				36.5	62.0	1.4
166	Kabylie	2179	⬇ 3	⬆ 2			16.1	2.0	35.6	46.3
167	Furry Primes	2073	⬇ 18	⬇ 4	⬇ 2		75.2			24.8
168	The Prime Pioneers	1919	⬆ 6	⬆ 3	⬆ 2			100.0
169	The Pensis	1869	⬆ 6	⬆ 3	⬆ 2					100.0
170	VRS_SE	1852		⬇ 3	⬇ 1				85.1	14.9
171	San Francisco	1586	⬆ 10	⬆ 3	⬆ 1				100.0
172	hreid	1575	⬆ 22	⬆ 3	⬆ 1				100.0
173	cr_colorado	1549	⬆ 9	⬆ 3	⬆ 1					100.0
174	Obsidian	1542	⬆ 4	⬆ 3	⬆ 1					100.0
175	I Love Canadian Natural Resources	1514	⬇ 8	⬆ 3	⬆ 1					100.0
176	3DCenter.org	1194	⬇ 10	⬆ 5	⬆ 1	⬆ 1					100.0
177	Amserver	1066	⬆ 45	⬆ 39	⬆ 1	⬆ 1	100.0
178	Join Us 😈	1060	⬆ 19	⬆ 4	⬆ 1	⬆ 1	66.8			33.2
179	youngfun429	1037	⬇ 33	⬆ 4	⬆ 1	⬆ 1			75.3	24.7
180	TunisianTeam	1031	⬆ 6	⬆ 4	⬆ 1	⬆ 1			75.0	25.0
181	Therian Primes	1007	⬆ 6	⬆ 4	⬆ 1	⬆ 1		14.6		52.4	33.0
182	Team Bulgaria	905	⬆ 31	⬆ 35	⬆ 1	⬆ 1			95.0		5.0
183	Czech National Team	903	⬆ 6	⬆ 3	⬆ 1	⬆ 1	4.1		91.8	0.8	2.0
184	RafaÅ‚ HacuÅ›	860	⬆ 38	⬆ 4	⬆ 1	⬆ 1			100.0
185	AWC	801	⬆ 6	⬆ 4	⬆ 1	⬆ 1			100.0
186	GIMPS Asturias	794	⬆ 6	⬆ 5	⬆ 1	⬆ 1			99.6	0.4
187	Weatopians	793	⬆ 6	⬆ 5	⬆ 2	⬆ 1			99.7	0.3
188	Team_Brazil	711	⬇ 24	⬇ 27	⬇ 29	⬇ 12	28.6	1.0		70.3
189	TimE4This	626	⬆ 1	⬇ 2	⬆ 1					100.0
190	SGDynamo Dresden	564	⬆ 9	⬆ 4	⬆ 1		100.0
191	PARG team	563	⬆ 28	⬆ 4	⬆ 1					96.2	3.8
192	PrimeObsession	539	⬆ 8	⬆ 4	⬆ 1					100.0
193	GIMPS.Romania	422	⬆ 29	⬆ 5	⬆ 1				100.0
194	His Dark Materials	291	⬇ 6	⬆ 5	⬆ 1						99.8
195	Yurunago	276	⬆ 8	⬆ 5	⬆ 1					100.0
196	Vegan	275	⬆ 8	⬆ 5	⬆ 1					100.0
197	The Planetary Society	267	⬆ 25	⬆ 23	⬆ 18					100.0
198	Byberg Nordic Prime	265	⬆ 8	⬆ 4						100.0
199	FDY	265	⬆ 23	⬆ 4						100.0
200	Subprime Searches	256	⬇ 24	⬆ 4						100.0
201	GIMPS Hams	253	⬆ 8	⬆ 4				100.0
202	WSU Cougars	247	⬇ 31	⬇ 22						100.0
203	miiro	240	⬆ 11	⬆ 5			100.0
204	Zorin OS Crew	237	⬇ 20	⬇ 7						100.0
205	GIMPS_IOM	236	⬇ 28	⬇ 12			100.0
206	DividerHunt	221	⬆ 4	⬆ 3			100.0
207	Team Dominik Radler	214	⬇ 5	⬇ 1			100.0
208	Manri Costa Rica	213	⬆ 3	⬆ 3						100.0
209	/r/counting	184	⬇ 4	⬆ 3
210	GIMPS.Peace	122	⬆ 5	⬆ 3	⬆ 1	⬆ 1	44.7	55.3
211	sannerud.com	108	⬆ 6	⬆ 4	⬆ 1	⬆ 1	43.1				19.4	37.5
212	alan145	78	⬇ 14	⬇ 2	⬇ 2	⬇ 2	100.0
213	PROMYS	23	⬆ 5	⬆ 5							100.0
214	yfinder	1	⬆ 7	⬆ 5						100.0