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 2026-08-01 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	278274101		⬆ 1	⬆ 1		0.5		0.1		99.3
2	Slovakia	153294598		⬇ 1	⬇ 1		0.3	90.3	0.4	0.1	8.9
3	Ars Technica Team Prime Rib	151862048	⬆ 2	⬆ 1	⬆ 1			99.2		0.7
4	PrimeNet	150018998		⬇ 1	⬇ 1		0.2	80.0	0.6	0.8	18.4
5	POLAND	112009178	⬇ 2				0.9	95.2	0.4	0.1	3.3
6	-Too many Ones-	64575004						77.4			22.5
7	Team#1	23007900	⬆ 5				1.9	16.6	44.1	35.5	2.0
8	GIMPSChina	20204060					50.8	30.4	4.6	0.7	13.5
9	Numberphile	12596207	⬆ 9	⬆ 4			3.4	17.8	4.9	1.7	72.1
10	UCM-curtisc	12280017	⬆ 3						99.2	0.8
11	Team-Deutschland	12079484					2.2	60.1	1.0	0.2	36.4
12	More Power!!!	10113448	⬆ 2				17.1	69.7	2.9	2.5	7.9
13	TeamUK	6636476	⬆ 2	⬆ 1			46.4	2.5	21.1	1.7	28.1
14	Porta Kruse	6347176	⬆ 2	⬆ 1			2.0	0.5			91.2	6.2
15	GW's legions	6011603	⬇ 5	⬇ 6			0.1	2.0	88.9	4.0	4.9
16	GPU to 72	5625054	⬆ 1	⬆ 1			48.0	32.7	1.2	3.3	14.6
17	One Man Team	3662399	⬇ 8	⬇ 1				98.6	1.4
18	UW Eau Claire	3645852	⬆ 1	⬆ 1			91.1		6.5	2.4
19	tsc	3360111	⬆ 1	⬇ 1			61.4	2.5	1.0	0.3	34.8
20	UKRAINE	2830647	⬆ 3	⬆ 1			6.7	5.4	78.7	9.1
21	Argentina	2563445	⬆ 1	⬇ 1			92.1		7.9
22	Wikipedia	1920780	⬆ 2				57.5	34.8	4.7	2.0	0.8
23	GIMPS.Korea	1563507	⬆ 7	⬆ 1			87.3	4.6	3.6	0.8	3.4
24	GIMPS.Occitania	1187005	⬆ 5	⬆ 1				4.4				95.6
25	Swedes Of Primes	1001211	⬆ 3	⬆ 1	⬆ 1		1.5	78.0	17.2	3.3
26	SpongeBob SquarePants	986143	⬇ 5	⬇ 3	⬇ 1			30.3	64.3	5.4
27	Dutch Power Cows	936878	⬇ 2				47.6	12.1	1.6	2.7	35.9
28	MBAi.Cloud	859138	⬆ 3						99.9	0.1
29	404 - "Primes not Found"	814172	⬆ 12	⬆ 1			92.2		7.8	0.1
30	MATHSareREAL	578886	⬆ 2	⬇ 1			96.2		2.5	1.3
31	Buhr	491712	⬆ 3				48.6	5.4	16.6	5.4	24.1
32	GIMPS.USA	465841	⬇ 6				31.1	45.9	16.4	3.8	2.4
33	Colorado School of Mines	406642	⬆ 6	⬆ 1	⬆ 1		85.4		13.3	1.3
34	citizenscience.ru	402887	⬇ 1	⬇ 1	⬇ 1		86.2	1.9	6.8	1.0	3.7	0.4
35	Terry Kim Team	364626	⬆ 1	⬆ 2	⬆ 1		95.5		3.3	0.8
36	Rechenkraft.net	360515	⬆ 1		⬇ 1		0.2	50.8	6.0	7.3	35.8
37	MOXA	355739	⬇ 2	⬆ 1			99.4		0.4	0.1
38	GIMPS.Japan	336552	⬇ 11	⬇ 3			40.0		36.5	13.1	10.3
39	S485122	303051	⬇ 1					95.0		5.0
40	nranks	262108	⬆ 6	⬆ 3			28.2	0.4	2.4	0.3	68.6
41	YahsTeam	238611	⬆ 1	⬆ 1			87.3		10.3	2.5
42	NanJing Tech	216777	⬆ 8	⬆ 2	⬆ 1		24.2		72.4	3.4
43	GIMPS Team Philippines	203774	⬆ 1	⬆ 2	⬆ 2		49.5		10.5	1.8	33.8
44	Smoke-it	190869	⬇ 4	⬇ 3	⬇ 2		91.5	6.7	1.7
45	NerdyGirls	190535		⬆ 1	⬆ 1			44.6	4.7	50.8
46	Canada	181206	⬆ 1	⬆ 1	⬆ 1		7.8	1.3	66.8	24.1
47	unRAID	175068	⬇ 40	⬇ 7	⬇ 3			56.7	38.7	4.0	0.6
48	Team Tartan	168949							77.1	22.9
49	OverclockerAustralia	146714					59.9		14.3	20.1
50	GIMPS.Portugal	146711	⬆ 24	⬆ 7	⬆ 2		48.8	49.6		1.5
51	GIMPS.NZ	138090		⬇ 1	⬇ 1		79.3	0.2	10.9	9.5	0.1
52	Team China	129905		⬇ 1	⬇ 1				99.7	0.3
53	IOTA	129045	⬆ 9	⬆ 1	⬆ 1		94.6		3.9	1.5
54	Unicamp	123379	⬇ 1	⬇ 2	⬇ 1		67.7		28.8	3.5
55	GIMPS.France	116369	⬇ 1	⬇ 2			9.6	68.9	4.2	5.3	11.9
56	VIPR	108587	⬆ 30	⬆ 6			94.6		3.6	1.6
57	AMD Users	94376	⬆ 3	⬇ 1			49.4	0.6	8.4	41.1	0.4
58	UIUC	92710	⬆ 3						67.0	33.0
59	SASAKI	87491	⬇ 2	⬇ 4			100.0
60	Wile E. Coyote	82750	⬆ 7	⬆ 3					75.7	0.4	23.9
61	SHADO	81086	⬆ 4						62.6	19.1	11.2	1.2
62	Wisconsin	77271	⬇ 4	⬇ 2			33.6		34.6	31.7
63	Eratosthenes Sieve	74212	⬆ 3	⬆ 2	⬆ 1		0.7		95.3	3.9
64	Net-Work	73900			⬆ 1		5.8	1.0			83.3
65	randomteam	71704	⬇ 22	⬆ 1	⬆ 1						100.0
66	GIMPS China	71032	⬇ 11	⬇ 7	⬇ 3		81.9		11.1	0.1	6.7
67	S147127	68649	⬆ 4	⬆ 3			33.5		23.4	43.1
68	Esperanto	64627		⬆ 1				25.9	3.7	70.4
69	Team_Italia	64477	⬆ 4	⬆ 5			3.0	0.5	65.7	23.1	3.8	2.1
70	ParadoxZ Commando	63129		⬆ 2					71.5	28.5
71	Cap'n Entropy's Cavalcade of Wonderment	58705	⬇ 12	⬇ 3			68.8	8.4	19.2	3.6
72	NUST	56215	⬆ 36	⬆ 33	⬆ 5	⬆ 1	57.2	40.5	1.5	0.8
73	Team Israel	56035	⬇ 1	⬇ 2	⬇ 1	⬇ 1	96.7		2.8	0.5
74	Hungary	52997	⬆ 1	⬆ 2					4.6	1.4	93.9
75	EgyptianPolymaths	50896	⬇ 12					84.8
76	AJ	50559	⬇ 7	⬇ 3		⬆ 1			74.3	25.7
77	BitMEX Research	49613	⬇ 21	⬇ 10	⬇ 4	⬇ 1			93.7	6.3
78	ComputerraRU	46294	⬇ 2		⬆ 1		23.9		70.7	5.4
79	Brno University of Technology	43995	⬇ 2	⬇ 2	⬇ 1			1.2	77.2	21.6
80	Team Belgium	37685	⬇ 1				1.4	2.6	31.6	25.7	38.7
81	huskers-gimps	37666	⬆ 4	⬆ 2					75.6	24.4
82	Turku	36285		⬇ 1					100.0
83	GIMPS.NEO	35150	⬇ 5	⬇ 4					82.4	17.6
84	Team Viet Nam	35013	⬇ 4	⬇ 2			34.9		38.0	27.1
85	Debian	33368	⬇ 2	⬆ 2		⬆ 1			98.2	1.8
86	Hermessz	33318	⬆ 1			⬇ 1	64.6		35.4
87	Team H	32348	⬇ 3	⬇ 2			13.8		85.6	0.6
88	ᕙ(⇀‸↼‶)ᕗ	31555	⬆ 1		⬆ 1		0.7		98.9	0.4
89	Aiblspitz	31309	⬆ 16	⬆ 6	⬆ 2			89.6	2.5	7.9
90	HardOCP	30477	⬇ 9	⬇ 6	⬇ 2				71.7	28.3
91	baraCUDA	29906	⬆ 132	⬇ 2	⬇ 1				100.0
92	The Fellowship of Infinity	28151	⬆ 2		⬆ 1				99.5	0.5
93	MurrayInfoSys	27506	⬆ 3		⬇ 1	⬆ 1			66.9	33.1
94	Costa Rica	27434	⬆ 1		⬆ 1	⬇ 1			81.2	18.6
95	Channel 4	27109	⬇ 2	⬇ 4	⬇ 1				82.4	17.6
96	Small-Team-2000	26451	⬇ 6	⬇ 6					3.0	97.0
97	socal_prime	24551	⬇ 6	⬇ 1					76.7	23.1	0.1
98	Georgia Tech	20319	⬆ 3	⬇ 1					100.0
99	LimePrime	19874	⬆ 4	⬆ 1				7.1	83.5	9.3
100	A Single Engineer	17718		⬇ 2	⬆ 1				74.7	25.3
101	Team Retired	17672	⬇ 2	⬇ 2	⬇ 1				31.0	12.0
102	Com Systems (RU)	17650	⬆ 10						70.9	29.1
103	GIMPS Romania	16577	⬆ 1	⬇ 2			77.6		19.3	3.1
104	PrimitiveRootsCircle	15877	⬇ 2	⬇ 1			14.0		54.9	28.0	3.0
105	SpartaAlumni	15533	⬇ 8	⬇ 1					75.9	24.1
106	TurkishMath	14500	⬆ 16	⬆ 1					94.6	5.4
107	RobotechResearch	14195	⬆ 11	⬆ 2					50.6	49.4
108	Spain	12421	⬆ 1						69.4	30.6
109	Quantus	12170	⬆ 6	⬆ 2	⬆ 1		10.0		13.0	25.1		51.9
110	Ozzie Prime	11899	⬇ 3	⬆ 2	⬆ 1				39.8	15.7		44.4
111	moeses	11829		⬇ 1	⬇ 2				98.9	1.1
112	Portland State University	11063	⬆ 1	⬆ 7				40.8	44.8	14.5
113	FREE ROBUX	10852	⬆ 6	⬆ 1					100.0
114	Royal Military College of Canada	10691	⬆ 7	⬆ 2			89.7		7.9	2.4
115	Team Finland	10589	⬇ 5	⬆ 2			1.3		96.2		2.5
116	Nerdfighters for Mersenne Primes	10546	⬇ 2	⬇ 3					97.3	2.7
117	Prime Rib	10327	⬆ 23	⬆ 19	⬆ 14				97.7	2.3
118	Team Slovenia	9940	⬇ 2	⬇ 3					62.8	37.2
119	University of Waterloo	9710	⬆ 15	⬇ 1	⬇ 2				94.4	5.6
120	Syntony	9328	⬆ 4	⬆ 1	⬇ 1					100.0
121	LTT fans	9056	⬇ 33	⬆ 1			92.5				7.5
122	Shaffer's Studio	8756	⬆ 6	⬆ 1					89.3	10.6
123	Server66	8744	⬆ 14	⬆ 10	⬆ 5		100.0
124	math.auth.gr	8551	⬆ 8	⬆ 2	⬇ 1				100.0
125	JiBoTeam	8443	⬆ 2		⬇ 1	⬆ 1				100.0
126	Pavlicin	8407	⬆ 97	⬆ 1	⬇ 1	⬆ 1	79.7	0.1	20.2
127	SETI.Germany	8289	⬇ 21	⬇ 7		⬆ 1		11.4		88.6
128	MES-Team	8224	⬇ 36	⬇ 22	⬇ 8	⬇ 3	72.1	6.8		21.2
129	The_Dude_Abides	8004	⬆ 27	⬆ 20	⬇ 3				31.2	51.7	1.2
130	Die Zeitfinder	7955			⬇ 1				90.3	9.7
131	Triangle	7931	⬇ 2	⬆ 1	⬆ 4				98.9	1.0
132	Mensa	7878	⬇ 6	⬇ 4	⬇ 2				80.1	19.9
133	FreeBSD	7865	⬆ 3	⬇ 4	⬇ 1				71.0	29.0
134	Arpan Sen Labs	7478	⬆ 26	⬆ 4	⬆ 3	⬆ 3			60.1	39.9
135	Abacus	7147	⬇ 4	⬇ 4	⬇ 1	⬇ 1			98.8	1.2
136	Granada	7104	⬇ 16	⬇ 12	⬇ 3	⬇ 1	29.6		22.4	47.0
137	GIMPS.Taiwan	7047	⬇ 14	⬇ 3	⬇ 1	⬇ 1			81.2	18.1	0.1
138	FactorMania	6572	⬆ 7	⬇ 1				56.9			43.1
139	Morocco	5963	⬆ 29	⬆ 5	⬆ 6	⬆ 2			54.9	45.1
140	Team Christensen	5836	⬆ 3	⬇ 1		⬆ 2				100.0
141	irowiki	5804	⬇ 2	⬇ 1		⬇ 2				100.0
142	Team Norway	5766	⬇ 25	⬇ 7	⬇ 3	⬇ 2	78.1			4.5	17.1
143	Brasil	5639	⬇ 5		⬇ 1				69.9	29.9
144	México mágico	5568	⬆ 13	⬇ 3	⬇ 1				85.3	14.6
145	Korea.Prime	5515	⬆ 10	⬆ 5	⬇ 1				71.5	28.5
146	Hong Kong GIMP	5286	⬆ 7	⬆ 5	⬆ 6	⬆ 6			75.3	24.7
147	KnightLight	4985	⬇ 1	⬇ 2	⬇ 1	⬇ 1				100.0
148	teamMALI	4955	⬆ 2	⬆ 6	⬇ 1	⬇ 1			79.6	20.4
149	nmbarek_team	4942		⬇ 3	⬇ 1	⬇ 1			100.0
150	DePaul MAT 141	4934	⬆ 73	⬇ 3	⬇ 1	⬇ 1			99.6	0.4
151	Crunching@EVGA	4888		⬇ 3	⬇ 1	⬇ 1			99.7	0.3
152	YESHUA IS THE MESSIAH	4648	⬆ 14		⬇ 1	⬇ 1			99.2	0.8
153	Noam Karni Team	3963	⬆ 6	⬆ 2					79.7	20.3
154	Phi Kappa Theta	3762	⬆ 7	⬆ 2					66.0	34.0
155	Politeknik Banting, Selangor	3101	⬇ 30	⬆ 3	⬆ 2		65.4		25.5	9.1
156	Olympic College	3075	⬆ 2	⬆ 3	⬆ 2					100.0
157	Hyperion	2863	⬇ 22	⬇ 4	⬇ 1					19.5
158	GIMPS.Hong Kong	2629	⬆ 4	⬆ 3	⬆ 1		2.1		61.4	36.5
159	Elisabeth-von-Thadden-Schule	2559	⬇ 15	⬇ 17	⬇ 4				90.5	9.5
160	Pi Rho	2499	⬆ 7	⬆ 3					67.1	32.9
161	GIMPSMalaysia	2394	⬆ 8	⬆ 4					66.8	33.2
162	CZAsTc	2288	⬆ 22	⬆ 4	⬆ 1				99.5	0.4
163	The Planetary Society	2237	⬆ 60	⬆ 55	⬆ 12				76.1	23.9
164	Team Austria	2199	⬇ 66	⬆ 4			12.8	9.5	77.7
165	GIMPS_KS	2199	⬆ 7	⬆ 4					36.5	62.0	1.4
166	Kabylie	2133	⬇ 2	⬆ 1			14.3	2.0	36.4	47.3
167	zeit	2075	⬇ 4	⬇ 5	⬇ 5		13.2			86.8
168	The Prime Pioneers	1919	⬆ 7	⬆ 3	⬇ 1			100.0
169	VRS_SE	1852	⬆ 1	⬆ 1	⬇ 1				85.1	14.9
170	Furry Primes	1660	⬇ 16	⬇ 6	⬇ 1		69.0			31.0
171	San Francisco	1586	⬆ 9	⬆ 2	⬇ 1				100.0
172	hreid	1575	⬆ 9	⬆ 2	⬇ 1				100.0
173	cr_colorado	1549	⬆ 9	⬆ 2	⬇ 1					100.0
174	Obsidian	1542		⬆ 3	⬇ 1					100.0
175	3DCenter.org	1161	⬇ 4	⬆ 4	⬇ 1						100.0
176	Amserver	1066	⬆ 47	⬆ 4			100.0
177	Join Us 😈	1060	⬆ 19	⬆ 4			66.8			33.2
178	youngfun429	1037	⬇ 31	⬆ 4					75.3	24.7
179	TunisianTeam	1031	⬆ 7	⬆ 4					75.0	25.0
180	I Love Canadian Natural Resources	1018	⬇ 7	⬇ 2						100.0
181	Therian Primes	1007	⬆ 6	⬆ 3				14.6		52.4	33.0
182	Team Bulgaria	905	⬆ 33	⬆ 33					95.0		5.0
183	Czech National Team	903	⬆ 6	⬆ 2			4.1		91.8	0.8	2.0
184	RafaÅ‚ HacuÅ›	860	⬆ 39	⬆ 2					100.0
185	UMD University of Maryland Prime Hunters	850	⬆ 38	⬆ 33	⬆ 29				100.0
186	AWC	801	⬆ 5	⬆ 1	⬇ 1				100.0
187	GIMPS Asturias	794	⬆ 5	⬆ 1	⬇ 1				99.6	0.4
188	Weatopians	793	⬆ 5	⬆ 2	⬇ 1				99.7	0.3
189	SGDynamo Dresden	595	⬆ 9	⬆ 3			100.0
190	PARG team	563	⬆ 30	⬆ 3						96.2	3.8
191	SETI.USA	553	⬆ 32	⬆ 27	⬆ 23	⬆ 5				100.0
192	PrimeObsession	539	⬆ 7	⬆ 2	⬇ 1	⬇ 1				100.0
193	GIMPS.Romania	422	⬆ 30	⬆ 2	⬇ 1	⬇ 1			100.0
194	LIKN	279	⬆ 29	⬆ 24		⬇ 1				100.0
195	Yurunago	276	⬆ 8	⬆ 3	⬇ 2	⬇ 1				100.0
196	Vegan	275	⬆ 8	⬆ 3	⬇ 1	⬇ 1				100.0
197	Byberg Nordic Prime	265	⬆ 8	⬆ 3						100.0
198	FDY	265	⬆ 8	⬆ 3						100.0
199	Subprime Searches	256	⬇ 22	⬆ 3						100.0
200	GIMPS Hams	253	⬆ 9	⬆ 3				100.0
201	WSU Cougars	247	⬇ 16	⬆ 3		⬆ 1				100.0
202	His Dark Materials	243	⬇ 14	⬇ 5	⬇ 6	⬇ 1					99.9
203	miiro	240	⬆ 11	⬆ 3	⬇ 1		100.0
204	Zorin OS Crew	230	⬇ 21	⬆ 3	⬇ 1					100.0
205	DividerHunt	221	⬆ 5	⬆ 3	⬇ 1		100.0
206	GIMPS_IOM	215	⬇ 28	⬇ 10	⬇ 1		100.0
207	Manri Costa Rica	213	⬆ 4	⬆ 2	⬇ 1					100.0
208	/r/counting	184	⬆ 5	⬆ 2	⬇ 1
209	Team Dominik Radler	183	⬇ 7	⬇ 4	⬇ 1		100.0
210	GIMPS.Peace	122	⬆ 6	⬆ 2	⬇ 1		44.7	55.3
211	sannerud.com	108	⬆ 7	⬆ 3	⬇ 1		43.1				19.4	37.5
212	alan145	59	⬇ 12	⬇ 1	⬇ 1		100.0
213	PROMYS	23	⬆ 6	⬆ 3	⬇ 1						100.0
214	yfinder	1	⬆ 8	⬆ 3	⬇ 1					100.0