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 2026-09-17 15:00 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	Ars Technica Team Prime Rib	184130833	⬆ 2	⬆ 1				99.3		0.6
2	Slovakia	156660478	⬇ 1	⬆ 1			0.3	88.5	0.4	0.1	10.7
3	PrimeNet	151124919	⬆ 1	⬆ 1			0.2	80.1	0.6	0.8	18.3
4	GIMPS.Russia	144165235	⬇ 2	⬇ 3			0.9	0.1	0.3		98.7
5	POLAND	111569739					0.9	96.1	0.4	0.1	2.5
6	-Too many Ones-	67262692						78.3			21.6
7	Team#1	23007900	⬆ 1				1.9	16.6	44.1	35.5	2.0
8	GIMPSChina	20092562	⬇ 1				45.2	31.9	4.4	0.7	17.8
9	UCM-curtisc	12811322	⬆ 1	⬆ 1					99.2	0.8
10	Numberphile	12641164	⬆ 6	⬇ 1			3.3	18.2	4.8	1.7	71.9
11	Team-Deutschland	11045688					1.9	66.7	1.4	0.3	29.6
12	More Power!!!	8706367					18.0	73.5	3.5	3.1	1.8
13	Porta Kruse	6302787	⬆ 2	⬆ 1			2.0	0.5			91.1	6.2
14	TeamUK	6195420		⬇ 1			45.1	2.3	21.7	1.9	28.9
15	GW's legions	6171431	⬇ 6				0.1	1.9	89.6	4.2	4.2
16	GPU to 72	6015347	⬆ 1				42.6	38.2	2.4	3.1	13.5
17	tsc	3949171	⬆ 2	⬆ 2			55.4	1.8	0.9	0.3	41.7
18	UW Eau Claire	3654141					91.1		6.5	2.4
19	UKRAINE	3382142	⬆ 1	⬆ 1			3.0	4.8	85.1	7.0
20	Argentina	2563445	⬆ 1	⬆ 1			92.1		7.9
21	GIMPS.Korea	1856861	⬆ 3	⬆ 2	⬆ 1		87.1	4.4	3.4	0.8	4.2
22	Wikipedia	1822405			⬇ 1		55.5	36.5	4.9	2.0	0.9
23	Dutch Power Cows	1318955	⬆ 4	⬆ 5			29.6	8.1	1.1	1.9	59.2
24	GIMPS.Occitania	1185058	⬆ 1					4.5				95.5
25	404 - "Primes not Found"	1023538	⬆ 8				91.3		8.7	0.1
26	Swedes Of Primes	832081					2.0	76.0	18.4	3.5
27	MBAi.Cloud	805177	⬆ 1						99.9	0.1
28	MATHSareREAL	578886	⬆ 1	⬆ 2			96.2		2.5	1.3
29	GIMPS.USA	553052	⬆ 9	⬆ 3			37.9	38.6	17.6	3.6	2.0
30	Buhr	472540		⬆ 1			42.6	6.7	16.4	5.6	28.7
31	Colorado School of Mines	425062	⬆ 5	⬆ 2			81.7		16.7	1.5
32	citizenscience.ru	374747		⬆ 2			86.8	0.7	8.0	1.0	3.5
33	MOXA	357415	⬆ 6	⬆ 2	⬆ 1		99.8		0.2
34	Rechenkraft.net	343798	⬆ 1	⬆ 2	⬆ 1		0.1	51.1	5.1	7.3	36.4
35	S485122	301359	⬆ 5	⬆ 4	⬆ 1			95.1		4.9
36	GIMPS.Japan	297199	⬇ 2	⬆ 2	⬆ 1		44.9		40.1	14.7	0.3
37	Terry Kim Team	268527			⬆ 1	⬆ 1	94.4		4.2	0.9
38	nranks	262626	⬆ 5	⬆ 2	⬆ 1	⬆ 1	28.5	0.4	2.4	0.2	68.4
39	SpongeBob SquarePants	257917	⬇ 16	⬇ 10	⬇ 6	⬇ 2		34.0	62.4	3.6
40	NanJing Tech	235830	⬆ 4	⬆ 2			22.2		67.1	10.5
41	YahsTeam	213004	⬆ 1				87.3		9.8	2.9
42	GIMPS Team Philippines	208542	⬆ 4	⬆ 1			46.5		10.7	2.1	36.3
43	unRAID	206392	⬇ 12	⬆ 13	⬆ 4			66.3	23.7	3.0	6.9
44	NerdyGirls	176486	⬆ 1		⬇ 1			44.6	5.5	49.9
45	Team Tartan	161976	⬆ 3	⬆ 1	⬇ 1				77.3	22.7
46	Canada	156452	⬆ 1	⬇ 1	⬇ 1		9.0	0.8	64.7	25.5
47	GIMPS.Portugal	155241	⬆ 9		⬇ 1		49.3	49.2		1.4
48	IOTA	152531	⬆ 6	⬆ 1			93.6		4.4	2.0
49	GIMPS.NZ	136992	⬆ 1	⬆ 1			79.2	0.2	12.2	8.3	0.1
50	Team China	132079	⬆ 1	⬆ 1			0.1		99.6	0.3
51	VIPR	111671	⬆ 19	⬆ 4	⬆ 1	⬆ 1	96.7		2.1	1.0
52	Unicamp	111073		⬆ 1	⬇ 1	⬇ 1	69.6		28.4	2.0
53	UIUC	98706	⬆ 6	⬆ 4	⬆ 1				67.2	32.8
54	AMD Users	93337	⬆ 3	⬆ 4	⬆ 1		50.0	0.6	1.7	47.2	0.4
55	ComputerraRU	92206	⬆ 22	⬆ 20	⬆ 3		64.0		33.3	2.7
56	Wile E. Coyote	91511	⬆ 7	⬆ 3	⬆ 1				72.9	0.1	27.0
57	GIMPS.France	89321	⬇ 4	⬇ 3	⬇ 1			87.9	6.4	5.7
58	NUST	81569	⬆ 49	⬆ 8	⬆ 1	⬆ 1	57.6	40.8	1.0	0.5
59	OverclockerAustralia	80473	⬇ 10	⬇ 11	⬇ 6	⬇ 1	47.3		15.4	30.6
60	SHADO	76419	⬆ 1	⬆ 3	⬆ 1				63.4	17.6	12.0	0.8
61	SASAKI	75127	⬇ 6	⬇ 1	⬇ 1		100.0
62	Eratosthenes Sieve	71986	⬆ 3	⬆ 3			0.8		94.0	5.1
63	Net-Work	70381	⬆ 1	⬆ 1			6.4	1.2		0.4	80.5
64	GIMPS China	70096	⬇ 6	⬇ 2			83.9		9.1	0.1	6.7
65	S147127	69089	⬆ 6	⬆ 2	⬆ 1	⬆ 1	34.0		30.2	35.8
66	Team_Italia	68389	⬆ 9	⬆ 2	⬆ 1	⬆ 1	3.2	0.5	66.8	21.5	5.1	1.3
67	Wisconsin	68350	⬇ 7	⬇ 6	⬇ 2	⬇ 2	26.9		38.1	34.9
68	ParadoxZ Commando	64238	⬆ 4	⬆ 1					72.9	27.0
69	Esperanto	63376	⬇ 1	⬆ 1				25.8	5.1	69.1
70	EgyptianPolymaths	52453	⬆ 4	⬆ 3				82.1
71	Cap'n Entropy's Cavalcade of Wonderment	51007	⬇ 5				67.1	9.1	19.5	4.2
72	AJ	45165	⬆ 1	⬆ 4	⬆ 1				74.6	25.4
73	Team Israel	44262	⬇ 4	⬇ 1	⬇ 1		96.7		2.8	0.6
74	Brno University of Technology	43447	⬆ 4	⬆ 3	⬆ 1				79.9	20.1
75	One Man Team	43398	⬇ 62	⬇ 58	⬆ 1				99.9
76	Aiblspitz	40657	⬆ 20	⬆ 7	⬆ 1			93.2		6.8
77	Hungary	40281	⬇ 1	⬇ 3	⬇ 3				6.0	1.3	92.6
78	Team Belgium	38860	⬆ 2				1.4	2.5	34.9	23.7	37.6
79	Turku	36285	⬆ 2	⬆ 2					100.0
80	huskers-gimps	36273	⬆ 3	⬆ 2					76.7	23.3
81	Debian	32580	⬆ 4	⬆ 5	⬆ 2				98.2	1.8
82	ᕙ(⇀‸↼‶)ᕗ	31960	⬆ 4	⬆ 7	⬆ 3	⬆ 1	0.7		98.9	0.4
83	Hermessz	31652	⬆ 5	⬆ 4	⬆ 1	⬆ 1	65.1		32.4	2.5
84	GIMPS.NEO	30975	⬇ 5		⬆ 2	⬆ 1			83.8	16.1
85	Team H	30941	⬆ 2	⬆ 3	⬇ 3	⬇ 3	14.7		84.7	0.6
86	baraCUDA	29906	⬆ 3	⬆ 4	⬆ 1				100.0
87	MurrayInfoSys	28633	⬆ 7	⬆ 6	⬆ 1				69.0	31.0
88	The Fellowship of Infinity	27430	⬆ 4	⬆ 3	⬆ 1				99.6	0.4
89	HardOCP	26789	⬇ 5	⬆ 3	⬆ 2				70.1	29.9
90	Team Viet Nam	26644	⬇ 8	⬇ 5			45.8		32.1	22.0
91	Small-Team-2000	26012	⬇ 1	⬆ 3	⬆ 2					99.5	0.5
92	Channel 4	25514	⬇ 1	⬆ 3					81.3	18.7
93	Costa Rica	23632	⬆ 2	⬆ 4	⬆ 2				81.2	18.3
94	Georgia Tech	20319	⬆ 3	⬆ 4	⬆ 3				100.0
95	socal_prime	20204	⬇ 2	⬆ 1	⬆ 1				73.9	26.0
96	Com Systems (RU)	19841	⬆ 8	⬆ 3	⬆ 2				71.4	28.6
97	BitMEX Research	19442	⬇ 35	⬇ 17	⬇ 3				84.1	15.9
98	randomteam	19223	⬇ 31	⬇ 19	⬆ 1						100.0
99	LimePrime	17857	⬆ 4	⬆ 1	⬆ 1			0.9	88.8	10.4
100	GIMPS Romania	17483	⬆ 2	⬆ 1	⬆ 1		73.6		23.5	3.0
101	Mensa	17300	⬆ 24	⬆ 24	⬆ 4				66.6	33.4
102	RobotechResearch	16328	⬆ 8	⬆ 5	⬆ 1				48.9	51.1
103	A Single Engineer	15937	⬇ 5	⬇ 1	⬇ 1				68.5	31.5
104	TurkishMath	15307	⬆ 4	⬆ 2					94.9	5.1
105	SpartaAlumni	14515	⬇ 5		⬆ 1				76.0	24.0
106	PrimitiveRootsCircle	13994	⬇ 5	⬇ 2	⬆ 1		5.9		62.6	30.1	1.4
107	moeses	13443	⬆ 2	⬆ 1	⬆ 1				98.9	1.0
108	Team Retired	12891	⬇ 9	⬇ 5	⬆ 1				24.0	2.7
109	Portland State University	11938	⬆ 10	⬆ 5	⬆ 1	⬆ 1		34.5	63.0	2.5
110	FREE ROBUX	10852	⬆ 6	⬆ 1	⬆ 1	⬆ 1			100.0
111	Royal Military College of Canada	10691	⬆ 6	⬆ 2	⬆ 1	⬆ 1	89.7		7.9	2.4
112	Ozzie Prime	10625	⬇ 1	⬆ 7	⬆ 1	⬆ 1			22.6	15.6		61.9
113	Team Finland	10609	⬆ 5	⬆ 2	⬆ 1	⬆ 1	1.5		96.0		2.5
114	University of Waterloo	10564	⬆ 7	⬆ 4	⬆ 1	⬆ 1			94.9	5.1
115	The_Dude_Abides	10513	⬆ 37	⬆ 13	⬆ 4	⬆ 1			31.7	52.3	0.9
116	Prime Rib	10320	⬆ 17		⬆ 4	⬆ 2			98.3	1.7
117	Quantus	10130	⬇ 4	⬇ 8	⬇ 1		12.0		15.6	10.0		62.4
118	Shaffer's Studio	9483	⬆ 8	⬆ 3	⬆ 6	⬆ 1			91.0	8.9
119	Team Slovenia	9442	⬇ 5	⬇ 7	⬇ 1	⬆ 1			66.2	33.8
120	Syntony	9366	⬆ 3		⬇ 3	⬆ 1				100.0
121	LTT fans	9056	⬆ 3	⬆ 1		⬆ 1	92.5				7.5
122	Nerdfighters for Mersenne Primes	9002	⬇ 10	⬇ 5		⬆ 1			96.9	3.1
123	Arpan Sen Labs	8831	⬆ 19	⬆ 7		⬆ 1			59.9	40.1
124	JiBoTeam	8769	⬇ 2	⬆ 2	⬆ 5	⬆ 1				100.0
125	math.auth.gr	8551	⬆ 4	⬇ 1		⬆ 1			100.0
126	Pavlicin	8407	⬆ 4	⬆ 1	⬆ 1	⬆ 1	79.7	0.1	20.2
127	Spain	8301	⬇ 21	⬇ 17	⬇ 1	⬆ 1			75.6	24.4
128	SETI.Germany	8265	⬇ 13	⬇ 5		⬆ 1		11.5		88.5
129	FreeBSD	8180	⬆ 2	⬆ 4	⬆ 1	⬆ 1			68.9	31.1
130	Morocco	7951	⬆ 15	⬆ 2	⬆ 2	⬆ 1			62.5	37.5
131	Smoke-it	7916	⬇ 90	⬇ 79	⬇ 50	⬇ 22	63.9	36.1
132	Die Zeitfinder	7268	⬇ 5	⬇ 3	⬇ 1				89.3	10.7
133	Granada	7162	⬇ 13	⬆ 5	⬆ 1		30.1		22.2	47.7
134	GIMPS.Taiwan	7047	⬇ 6		⬇ 1				81.2	18.1	0.1
135	Server66	6758	⬆ 4				100.0
136	FactorMania	6572						56.9			43.1
137	Triangle	6360	⬇ 5	⬇ 6		⬆ 1			99.0	1.0
138	Abacus	6356	⬇ 3	⬇ 1		⬇ 1			98.9	1.1
139	Korea.Prime	6327	⬆ 11	⬆ 3					75.0	25.0
140	Brasil	6027	⬇ 2	⬆ 3	⬆ 5				79.3	20.5
141	Team Christensen	5891	⬇ 1	⬇ 1	⬇ 1					100.0
142	teamMALI	5789	⬆ 12	⬆ 4	⬇ 1				82.5	17.5
143	irowiki	5594	⬇ 6	⬇ 4	⬇ 1					100.0
144	México mágico	5568	⬇ 3	⬇ 3	⬇ 1				85.3	14.6
145	Phi Kappa Theta	5450	⬆ 14	⬆ 6	⬆ 5				76.6	23.4
146	KnightLight	4970	⬇ 2	⬇ 1						100.0
147	DePaul MAT 141	4934		⬆ 1					99.6	0.4
148	Crunching@EVGA	4888		⬆ 1					99.7	0.3
149	Hong Kong GIMP	4766	⬆ 2	⬇ 5	⬇ 5				67.2	32.8
150	YESHUA IS THE MESSIAH	4648	⬆ 3		⬇ 1				99.2	0.8
151	SETI.USA	4500	⬆ 69	⬆ 15					56.9	43.1
152	Noam Karni Team	3702	⬆ 3	⬆ 2					85.3	14.7
153	Team Norway	3477	⬇ 19	⬇ 1			71.5			7.4	20.4
154	Politeknik Banting, Selangor	3401	⬆ 6	⬆ 1			76.7		23.2	0.1
155	Team Bulgaria	3089	⬆ 63	⬆ 26	⬆ 8				55.6	42.9	1.5
156	Olympic College	2823	⬆ 1		⬇ 1					100.0
157	Pi Rho	2499	⬆ 8	⬆ 1	⬇ 1				67.1	32.9
158	GIMPS.Hong Kong	2406	⬆ 6	⬇ 1	⬇ 1		2.3		34.8	62.9
159	GIMPSMalaysia	2394	⬆ 7		⬇ 1				66.8	33.2
160	CZAsTc	2288	⬆ 19		⬇ 1				99.6	0.4
161	The Planetary Society	2237	⬆ 59		⬇ 1				76.1	23.9
162	Team Austria	2199	⬆ 7		⬇ 1		12.8	9.5	77.7
163	GIMPS_KS	2199	⬆ 7		⬇ 1				36.5	62.0	1.4
164	The Court of the Math Jester	1987	⬆ 56	⬆ 21	⬆ 5				86.1	13.9
165	The Prime Pioneers	1919	⬆ 6	⬆ 2	⬇ 1			100.0
166	Obsidian	1830	⬆ 11	⬆ 3	⬇ 1					100.0
167	Catalunya Team	1731	⬆ 53	⬆ 17	⬆ 1				98.7	1.3
168	zeit	1578	⬇ 6	⬇ 4	⬆ 2		17.4			82.6
169	hreid	1575	⬆ 6	⬆ 3	⬆ 2				100.0
170	cr_colorado	1549	⬆ 6	⬆ 3	⬆ 2					100.0
171	I Love Canadian Natural Resources	1542	⬆ 7	⬆ 3	⬆ 2					100.0
172	Hyperion	1480	⬇ 23	⬇ 7	⬇ 5					36.9
173	Vegan	1118	⬆ 28	⬆ 24	⬆ 1				75.4	24.6
174	Amserver	1066	⬆ 7	⬆ 2	⬆ 1		100.0
175	VRS_SE	1055	⬇ 8	⬇ 7	⬆ 1				74.6	25.4
176	youngfun429	1037	⬆ 7	⬆ 3	⬆ 1				75.3	24.7
177	Elisabeth-von-Thadden-Schule	1015	⬇ 34	⬇ 7	⬇ 11				76.2	23.8
178	Therian Primes	1007	⬆ 7	⬆ 2				14.6		52.4	33.0
179	Azerbaijan	861	⬆ 41	⬆ 36						97.6	2.4
180	RafaÅ‚ HacuÅ›	860	⬆ 8	⬆ 2					100.0
181	Czech National Team	857	⬆ 5	⬆ 2					96.7	0.2	1.8
182	Timesc	854	⬆ 38	⬆ 33					100.0
183	UMD University of Maryland Prime Hunters	850	⬆ 37	⬆ 3					100.0
184	AWC	801	⬆ 5	⬆ 3					100.0
185	Weatopians	793	⬆ 7	⬆ 4					99.7	0.3
186	alan145	673	⬆ 25	⬆ 20	⬆ 8	⬆ 1	38.3	20.4			41.3
187	Kabylie	670	⬇ 19	⬇ 9	⬇ 1	⬇ 1	25.1			74.9
188	PARG team	563	⬆ 7	⬆ 4	⬆ 1					96.2	3.8
189	Denmark	554	⬆ 31	⬆ 26	⬆ 1					100.0
190	SGDynamo Dresden	549	⬆ 4	⬆ 1	⬇ 2		100.0
191	Join Us 😈	543	⬇ 9	⬇ 14			35.2			64.8
192	PrimeObsession	539	⬆ 4	⬆ 1						100.0
193	Much prime! (wow)	532	⬆ 27	⬆ 22						100.0
194	Furry Primes	514	⬇ 31	⬇ 19	⬇ 7					100.0
195	GIMPS.Romania	422	⬆ 3	⬇ 1					100.0
196	LIKN	285	⬆ 24	⬇ 1	⬆ 1					99.9
197	Yurunago	276	⬆ 3	⬇ 1	⬆ 1					100.0
198	Byberg Nordic Prime	265	⬆ 4		⬆ 1					100.0
199	FDY	265	⬆ 4		⬆ 1					100.0
200	TunisianTeam	258	⬇ 16		⬆ 1					100.0
201	Subprime Searches	256	⬆ 3		⬆ 1					100.0
202	miiro	240	⬆ 6	⬆ 2	⬆ 1		100.0
203	DividerHunt	221	⬆ 7	⬆ 2	⬆ 2		100.0
204	/r/counting	184	⬆ 9	⬆ 4	⬆ 3
205	GIMPS.Peace	122	⬆ 9	⬆ 6	⬆ 4		44.7	55.3
206	GIMPS Hams	107	⬇ 1	⬇ 4				100.0
207	His Dark Materials	99	⬇ 8		⬆ 1						99.7
208	sannerud.com	98	⬆ 8	⬆ 4	⬆ 2	⬆ 1	47.6				10.9	41.5
209	3DCenter.org	87	⬇ 29	⬇ 19	⬇ 5	⬇ 1					100.0
210	Team Dominik Radler	46	⬇ 4		⬆ 1		100.0
211	GIMPS_IOM	19	⬇ 18	⬇ 2	⬆ 1		100.0
212	yfinder	1	⬆ 7	⬆ 2	⬆ 1					100.0