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 2026-07-22 13:00 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	590506847	⬆ 1				0.1	97.5	0.1		2.3
2	GIMPS.Russia	343885857	⬇ 1				0.4		0.1		99.5
3	PrimeNet	149931143	⬆ 2	⬆ 1			0.2	80.0	0.6	0.8	18.4
4	Ars Technica Team Prime Rib	145382137	⬆ 2	⬇ 1				99.2		0.7
5	POLAND	112037686	⬇ 2				0.9	95.2	0.5	0.1	3.3
6	-Too many Ones-	64365551	⬇ 2					77.4			22.6
7	Team#1	23007900	⬆ 6	⬆ 1			1.9	16.6	44.1	35.5	2.0
8	GIMPSChina	19211128		⬇ 1			55.4	25.3	4.8	0.7	13.7
9	Numberphile	12567032	⬆ 9	⬆ 5	⬆ 1		3.2	17.8	5.0	1.6	72.3
10	UCM-curtisc	12070937	⬆ 2		⬆ 1				99.2	0.8
11	Team-Deutschland	11922210			⬆ 1		2.4	59.0	1.0	0.2	37.4
12	More Power!!!	10179488	⬆ 2		⬆ 1		17.1	69.2	2.8	2.4	8.4
13	TeamUK	6706749	⬆ 2		⬆ 1		46.6	2.7	20.8	1.7	28.0	0.1
14	Porta Kruse	6354392	⬆ 2	⬆ 1	⬆ 1		2.0	0.5			91.2	6.2
15	GW's legions	5962972	⬇ 5	⬇ 6	⬇ 6	⬆ 1	0.1	2.0	88.8	4.0	5.1
16	GPU to 72	5376002	⬆ 1	⬆ 1	⬆ 1	⬆ 1	49.5	30.4	1.0	3.4	15.5
17	One Man Team	3663934	⬇ 8	⬇ 1	⬇ 1	⬇ 2		98.5	1.5
18	UW Eau Claire	3505633	⬆ 3	⬆ 1	⬆ 1		90.8		6.7	2.5
19	tsc	3401337		⬇ 1	⬇ 1		61.7	2.5	1.0	0.4	34.4
20	UKRAINE	2769789	⬆ 2				7.2	5.7	77.6	9.5
21	Argentina	2563445	⬆ 7				92.1		7.9
22	Wikipedia	1921130	⬆ 1				57.6	34.7	4.7	2.0	0.8
23	GIMPS.Korea	1503596	⬆ 7	⬆ 1			87.2	4.7	3.7	0.9	3.5
24	GIMPS.Occitania	1187005	⬆ 5	⬆ 1	⬆ 1			4.4				95.6
25	SpongeBob SquarePants	1127025	⬇ 5	⬇ 2	⬇ 1			30.3	63.1	6.7
26	Swedes Of Primes	1044745	⬆ 1				1.5	77.7	17.6	3.2
27	Dutch Power Cows	1044237	⬇ 3				42.9	10.9	1.5	2.4	42.2
28	MBAi.Cloud	852329	⬆ 3						99.9	0.1
29	404 - "Primes not Found"	719905	⬆ 13	⬆ 3			91.1		8.8	0.1
30	MATHSareREAL	578886	⬆ 2	⬇ 1			96.2		2.5	1.3
31	Buhr	498711	⬆ 4	⬇ 1			50.4	5.2	16.4	5.3	22.8
32	GIMPS.USA	460957	⬇ 7	⬆ 3			31.5	46.4	15.5	3.9	2.4
33	citizenscience.ru	417780		⬇ 2			86.3	2.2	6.5	1.0	3.6	0.4
34	Colorado School of Mines	403308	⬆ 5	⬆ 2			86.1		12.5	1.3
35	Rechenkraft.net	368001	⬆ 1	⬆ 2			0.2	51.4	6.1	7.0	35.4
36	Terry Kim Team	365156	⬆ 1	⬆ 2			95.6		3.3	0.7
37	MOXA	356380	⬇ 3	⬆ 2	⬆ 1	⬆ 1	99.2		0.6	0.1
38	GIMPS.Japan	354261	⬇ 12	⬇ 4	⬇ 1	⬇ 1	38.2		34.7	12.0	15.0
39	S485122	303911	⬇ 1	⬆ 1				95.1		4.9
40	nranks	259193	⬆ 6	⬆ 3	⬆ 2		28.7	0.4	2.5	0.3	68.1
41	YahsTeam	243002		⬆ 1	⬇ 1		87.9		9.7	2.3
42	Smoke-it	224708	⬇ 2	⬇ 1	⬆ 1	⬆ 1	90.7	7.7	1.4
43	unRAID	221097	⬇ 36	⬇ 10	⬇ 2	⬇ 1		63.5	32.7	3.2	0.6
44	NanJing Tech	216777	⬆ 7				24.2		72.4	3.4
45	GIMPS Team Philippines	207398	⬇ 1	⬆ 1			50.6		10.4	1.9	32.9
46	NerdyGirls	194092	⬇ 1	⬇ 1				43.7	5.0	51.3
47	Canada	181370					7.8	1.4	66.2	24.6
48	Team Tartan	171845							77.0	23.0
49	OverclockerAustralia	146302					60.0		14.4	20.3
50	GIMPS.NZ	135779					79.4	0.2	11.1	9.3	0.1
51	Team China	127370	⬆ 2						99.7	0.3
52	Unicamp	125170					66.9		29.6	3.5
53	IOTA	121908	⬆ 11	⬆ 1			95.2		3.4	1.4
54	GIMPS.Portugal	117453	⬆ 25	⬆ 3	⬆ 2	⬆ 1	49.7	48.3		1.9
55	GIMPS.France	116369	⬆ 2	⬇ 2	⬇ 1	⬇ 1	9.6	68.9	4.2	5.3	11.9
56	VIPR	100278	⬆ 32	⬆ 12	⬆ 1		94.2		4.0	1.7
57	AMD Users	96468	⬆ 4	⬇ 1	⬇ 2		48.4	0.6	9.9	40.8	0.4
58	UIUC	92894	⬆ 4	⬆ 1	⬆ 1				66.9	33.1
59	SASAKI	90218	⬇ 3	⬇ 4	⬇ 1		100.0
60	Wisconsin	80841	⬇ 2		⬆ 1		34.7		34.1	31.2
61	SHADO	80215	⬆ 2		⬇ 1				63.3	18.2	11.3	1.3
62	GIMPS China	79389	⬇ 7	⬇ 4	⬆ 1	⬆ 1	83.8		9.9	0.1	6.0
63	Wile E. Coyote	78789	⬆ 5	⬇ 1	⬇ 1	⬇ 1			74.7	0.4	24.8
64	Eratosthenes Sieve	74943	⬆ 2	⬆ 1	⬆ 1		0.7		95.4	3.8
65	Net-Work	73883		⬇ 1	⬇ 1		5.8	1.7			83.3
66	randomteam	71704	⬇ 23	⬆ 1							100.0
67	S147127	68553	⬆ 5	⬆ 4			32.5		23.4	44.1
68	Esperanto	65198	⬇ 1	⬆ 1				25.9	3.7	70.4	0.1
69	Team_Italia	63916	⬆ 1	⬆ 6	⬆ 1		2.9	0.6	66.3	22.9	3.4	2.4
70	ParadoxZ Commando	62983	⬆ 1	⬆ 2	⬇ 1				71.5	28.5
71	Cap'n Entropy's Cavalcade of Wonderment	60952	⬇ 12	⬇ 5			69.8	8.2	18.5	3.5
72	Team Israel	57970	⬆ 1	⬇ 2	⬆ 1		96.8		2.7	0.4
73	BitMEX Research	56558	⬇ 19	⬇ 10	⬇ 1				94.4	5.6
74	Hungary	52997		⬆ 2	⬆ 1				4.6	1.4	93.9
75	EgyptianPolymaths	51803	⬇ 15	⬇ 1	⬇ 1			83.3
76	AJ	50135	⬇ 7	⬇ 3					73.1	26.9
77	NUST	47922	⬆ 31	⬆ 30	⬆ 2		58.6	38.7	1.8	0.9
78	Brno University of Technology	47143	⬇ 1	⬇ 1	⬇ 1			4.6	75.3	20.1
79	ComputerraRU	44252	⬇ 3	⬇ 1	⬇ 1		25.0		71.3	3.7
80	Team Belgium	38184	⬇ 2				1.4	2.5	31.2	26.6	38.2
81	huskers-gimps	37663	⬆ 4	⬆ 2	⬆ 2	⬆ 1			75.6	24.4
82	GIMPS.NEO	36903	⬇ 7	⬇ 3	⬇ 1	⬇ 1			80.6	19.4
83	Turku	36285	⬆ 1	⬇ 2	⬇ 1				100.0
84	Team Viet Nam	35013	⬇ 4	⬇ 2			34.9		38.0	27.1
85	Hermessz	33969	⬆ 2	⬆ 3	⬆ 2	⬆ 2	63.0		37.0
86	Debian	33368	⬇ 4			⬇ 1			98.2	1.8
87	HardOCP	32530	⬇ 6	⬇ 3	⬆ 1	⬆ 1			72.1	27.9
88	Team H	32256	⬇ 2	⬇ 1	⬇ 3	⬇ 2	13.8		85.7	0.6
89	ᕙ(⇀‸↼‶)ᕗ	31551		⬇ 4			0.7		98.9	0.4
90	baraCUDA	29906	⬆ 132	⬇ 1					100.0
91	Aiblspitz	28612	⬆ 19	⬆ 5				88.6	2.8	8.6
92	MurrayInfoSys	27489	⬆ 5	⬆ 2	⬆ 3	⬆ 2			66.9	33.1
93	The Fellowship of Infinity	27359	⬆ 2	⬇ 1	⬇ 1	⬇ 1			99.5	0.5
94	Channel 4	27356	⬇ 1	⬇ 3	⬇ 1	⬇ 1			81.6	18.4
95	Costa Rica	27107	⬆ 1		⬆ 1				79.1	20.7
96	Small-Team-2000	27018	⬇ 6	⬇ 6	⬇ 2				2.9	97.1
97	socal_prime	24802	⬇ 6	⬇ 4					75.9	23.9	0.1
98	Georgia Tech	20319	⬆ 5	⬇ 1					100.0
99	LimePrime	19080	⬇ 1	⬆ 4				7.4	82.9	9.7
100	Team Retired	17811	⬇ 1	⬇ 1					30.8	11.9
101	A Single Engineer	17718		⬇ 3					74.7	25.3
102	Com Systems (RU)	17650	⬆ 14	⬆ 2	⬆ 1				70.9	29.1
103	GIMPS Romania	16577	⬆ 1	⬇ 1	⬇ 1		77.6		19.3	3.1
104	PrimitiveRootsCircle	15773	⬇ 4	⬇ 3	⬆ 1		15.4		50.2	31.3	3.1
105	SpartaAlumni	15513	⬇ 3	⬇ 5	⬇ 1				75.9	24.1
106	TurkishMath	15292	⬆ 20	⬆ 2					94.9	5.1
107	Spain	13473	⬇ 2	⬇ 1					69.9	30.1
108	RobotechResearch	13401	⬆ 19	⬆ 1					47.7	52.2
109	moeses	12606	⬆ 6	⬆ 1					98.9	1.1
110	Quantus	12170	⬆ 4	⬆ 3			10.0		13.0	25.1		51.9
111	Ozzie Prime	12077	⬇ 4						39.3	15.5		45.3
112	Portland State University	11134	⬇ 3	⬆ 7				41.1	44.5	14.4
113	FREE ROBUX	10852	⬆ 6	⬆ 2	⬆ 1				100.0
114	Nerdfighters for Mersenne Primes	10792	⬇ 2	⬇ 2	⬇ 1				95.1	4.9
115	Team Slovenia	10711	⬆ 2	⬆ 1					65.5	34.5
116	Royal Military College of Canada	10691	⬆ 4	⬆ 1	⬆ 1		89.7		7.9	2.4
117	Team Finland	10611	⬇ 6	⬆ 1	⬆ 1		1.5		96.0		2.5
118	MES-Team	9915	⬇ 26	⬇ 13	⬇ 2		64.7	7.7		27.5
119	University of Waterloo	9703	⬆ 18	⬆ 1					94.4	5.6
120	Syntony	9573	⬆ 5	⬆ 1	⬆ 1	⬆ 1				100.0
121	Shaffer's Studio	9545	⬆ 9	⬆ 4	⬇ 1	⬇ 1			90.0	9.9
122	LTT fans	9056	⬇ 39	⬆ 2			92.5				7.5
123	math.auth.gr	8551	⬆ 12	⬆ 5	⬆ 2				100.0
124	JiBoTeam	8443	⬆ 5	⬇ 1						100.0
125	Pavlicin	8407	⬆ 97	⬆ 4	⬆ 1		79.7	0.1	20.2
126	The_Dude_Abides	8406	⬆ 28	⬆ 20	⬆ 4	⬆ 1	2.4		29.7	51.9	1.2
127	SETI.Germany	8289	⬇ 21	⬇ 13	⬆ 2	⬆ 1		11.4		88.6
128	Server66	7983	⬆ 11	⬆ 5	⬆ 4	⬆ 1	100.0
129	Die Zeitfinder	7955	⬇ 1	⬇ 3	⬇ 6	⬆ 1			90.3	9.7
130	Granada	7881	⬇ 7	⬇ 8	⬆ 1	⬆ 1	26.9		20.2	52.1
131	Mensa	7620	⬇ 10	⬇ 1	⬇ 4	⬇ 5			82.8	17.2
132	FreeBSD	7605	⬇ 1	⬇ 1	⬇ 4				73.4	26.6
133	Prime Rib	7368	⬆ 5	⬆ 1	⬆ 4				96.8	3.1
134	Abacus	7147	⬇ 2	⬆ 1	⬇ 1				98.8	1.2
135	Triangle	7141	⬇ 1	⬇ 3	⬇ 1				98.7	1.3
136	GIMPS.Taiwan	7047	⬇ 12	⬇ 9	⬇ 1				81.2	18.1	0.1
137	Arpan Sen Labs	6686	⬆ 28	⬆ 4	⬇ 1				55.4	44.6
138	FactorMania	6572	⬆ 10	⬇ 1				56.9			43.1
139	Team Norway	6109	⬇ 26	⬇ 3	⬆ 1	⬆ 1	73.7			8.3	17.6
140	Team Christensen	6082	⬆ 3		⬆ 2	⬆ 1				100.0
141	irowiki	5988		⬇ 2		⬆ 1				100.0
142	Brasil	5621	⬇ 2	⬇ 4	⬇ 3	⬇ 3			70.2	29.7
143	México mágico	5568	⬆ 13	⬇ 1					85.3	14.6
144	Korea.Prime	5515	⬆ 17	⬆ 7					71.5	28.5
145	Morocco	5432	⬆ 28						60.2	39.8
146	KnightLight	5012		⬇ 2						100.0
147	teamMALI	4955	⬆ 8	⬆ 7	⬆ 6				79.6	20.4
148	nmbarek_team	4942	⬆ 1	⬇ 1	⬇ 1				100.0
149	DePaul MAT 141	4934	⬆ 73	⬇ 1	⬇ 1				99.6	0.4
150	Crunching@EVGA	4888		⬇ 1	⬇ 1				99.7	0.3
151	YESHUA IS THE MESSIAH	4648	⬆ 27	⬆ 2	⬇ 1				99.2	0.8
152	Hong Kong GIMP	4450	⬆ 1						70.6	29.4
153	Noam Karni Team	3963	⬆ 6	⬆ 2	⬆ 1				79.7	20.3
154	Phi Kappa Theta	3761	⬆ 6	⬆ 5	⬆ 1				66.0	33.9
155	Elisabeth-von-Thadden-Schule	3557	⬇ 11	⬇ 12	⬇ 4				65.1	34.8
156	Hyperion	3330	⬇ 23	⬇ 6						16.8
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	⬆ 3	⬆ 5	⬆ 1		2.1		61.4	36.4
160	Pi Rho	2499	⬆ 7	⬆ 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	⬆ 4	⬆ 1				99.5	0.4
164	Team Austria	2199	⬇ 70	⬆ 5	⬆ 1		12.8	9.5	77.7
165	GIMPS_KS	2199	⬆ 6	⬆ 5	⬆ 1				36.5	62.0	1.4
166	Kabylie	2179	⬇ 3	⬆ 2	⬆ 1		16.1	2.0	35.6	46.3
167	The Prime Pioneers	1919	⬆ 7	⬆ 5	⬆ 2	⬆ 1		100.0
168	Furry Primes	1905	⬇ 17	⬇ 5		⬇ 1	73.0			27.0
169	The Pensis	1869	⬆ 6	⬆ 4	⬆ 1					100.0
170	VRS_SE	1852		⬆ 1	⬆ 1				85.1	14.9
171	San Francisco	1586	⬆ 10	⬆ 4	⬆ 1				100.0
172	hreid	1575	⬆ 10	⬆ 4	⬆ 1				100.0
173	cr_colorado	1549	⬆ 10	⬆ 4	⬆ 1					100.0
174	Obsidian	1542	⬆ 3	⬆ 4	⬆ 1					100.0
175	3DCenter.org	1194	⬇ 7	⬆ 5	⬆ 2						100.0
176	The Planetary Society	1124	⬆ 46	⬆ 44	⬆ 21				75.8	24.2
177	Amserver	1066	⬆ 45	⬆ 4	⬆ 1		100.0
178	Join Us 😈	1060	⬆ 19	⬆ 4	⬆ 1		66.8			33.2
179	youngfun429	1037	⬇ 34	⬆ 4	⬆ 1				75.3	24.7
180	TunisianTeam	1031	⬆ 6	⬆ 4	⬆ 1				75.0	25.0
181	I Love Canadian Natural Resources	1018	⬇ 15	⬇ 2	⬇ 5					100.0
182	Therian Primes	1007	⬆ 5	⬆ 3				14.6		52.4	33.0
183	Team Bulgaria	905	⬆ 31	⬆ 34					95.0		5.0
184	Czech National Team	903	⬆ 5	⬆ 2			4.1		91.8	0.8	2.0
185	RafaÅ‚ HacuÅ›	860	⬆ 37	⬆ 3					100.0
186	AWC	801	⬆ 5	⬆ 3					100.0
187	GIMPS Asturias	794	⬆ 5	⬆ 4					99.6	0.4
188	Weatopians	793	⬆ 5	⬆ 4					99.7	0.3
189	TimE4This	626	⬆ 1	⬇ 2						100.0
190	SGDynamo Dresden	564	⬆ 9	⬆ 4			100.0
191	PARG team	563	⬆ 28	⬆ 4						96.2	3.8
192	PrimeObsession	539	⬆ 8	⬆ 4						100.0
193	GIMPS.Romania	422	⬆ 29	⬆ 5					100.0
194	His Dark Materials	278	⬇ 6	⬆ 5							99.9
195	Yurunago	276	⬆ 8	⬆ 5						100.0
196	Vegan	275	⬆ 8	⬆ 5						100.0
197	Byberg Nordic Prime	265	⬆ 8	⬆ 5	⬆ 1					100.0
198	FDY	265	⬆ 24	⬆ 5	⬆ 1					100.0
199	Subprime Searches	256	⬇ 20	⬆ 5	⬆ 1					100.0
200	GIMPS Hams	253	⬆ 8	⬆ 5	⬆ 1			100.0
201	WSU Cougars	247	⬇ 29	⬇ 4	⬆ 1					100.0
202	miiro	240	⬆ 11	⬆ 6	⬆ 1		100.0
203	Zorin OS Crew	231	⬇ 19	⬆ 6	⬆ 1					100.0
204	DividerHunt	221	⬆ 5	⬆ 6	⬆ 2		100.0
205	GIMPS_IOM	215	⬇ 29	⬇ 12			100.0
206	Manri Costa Rica	213	⬆ 4	⬆ 6	⬆ 2					100.0
207	/r/counting	184	⬆ 5	⬆ 6	⬆ 2
208	Team Dominik Radler	183	⬇ 6	⬇ 2	⬇ 1		100.0
209	GIMPS.Peace	122	⬆ 6	⬆ 5	⬆ 2		44.7	55.3
210	sannerud.com	108	⬆ 7	⬆ 6	⬆ 2		43.1				19.4	37.5
211	alan145	59	⬇ 13		⬇ 1		100.0
212	PROMYS	23	⬆ 6	⬆ 6	⬆ 1						100.0
213	yfinder	1	⬆ 8	⬆ 6	⬆ 1					100.0