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 2026-01-18 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	991369726	⬆ 1				0.4		0.1		99.5
2	Slovakia	691352813	⬆ 1	⬆ 1			0.2	97.6			2.2
3	PrimeNet	469956848	⬇ 2	⬇ 1				98.1	0.2	0.3	1.4
4	POLAND	449233863					0.3	99.1	0.1		0.5
5	-Too many Ones-	240847215					0.3	86.7			13.0
6	Ars Technica Team Prime Rib	33978660					0.1	94.7	0.1	2.3	2.7
7	unRAID	33901805						99.5	0.4		0.1
8	GIMPSChina	21749590					81.8	11.6	4.2	0.8	1.6
9	One Man Team	16980486						99.5	0.5
10	More Power!!!	14425321					13.9	56.0	1.8	0.7	27.6
11	GW's legions	12733001					0.1	0.9	29.2	0.6	69.2
12	Team-Deutschland	12096581					4.0	5.6	0.6	0.2	89.6	0.1
13	UCM-curtisc	11892184							99.4	0.6
14	TeamUK	7397607					38.1	6.5	19.0	1.2	34.9	0.2
15	Porta Kruse	6315470	⬆ 20	⬆ 9				0.1		0.1	93.5	6.2
16	szerverem.hu	6245412	⬆ 226	⬆ 219			6.8	43.1	36.9	5.9	7.3
17	GPU to 72	5039092	⬇ 2	⬇ 2			63.8	21.2	0.7	3.6	10.7
18	SpongeBob SquarePants	4314646	⬇ 2	⬇ 2			3.7	30.9	52.0	11.8	1.5
19	Numberphile	2932468	⬇ 1	⬇ 1			32.6	40.3	18.8	6.7	1.4
20	Dutch Power Cows	2444918	⬇ 3	⬇ 3			32.2	32.9	1.2	1.1	32.6
21	tsc	2398615	⬇ 2	⬇ 2			91.3	6.5	1.6	0.2	0.4
22	UKRAINE	2182708	⬇ 2	⬇ 2			36.6	15.2	34.3	13.8
23	Wikipedia	1900093	⬆ 1	⬇ 2			59.8	33.0	4.1	2.3	0.5
24	Swedes Of Primes	1556951	⬇ 2	⬇ 2			0.1	83.4	14.1	2.3
25	GIMPS.USA	1413261	⬇ 2	⬇ 2			5.5	0.2	3.5	2.0	88.7
26	GIMPS.Japan	1341664	⬇ 5	⬇ 1			4.5	0.1	8.0	1.8	85.6
27	GIMPS.Occitania	1290132	⬇ 2	⬇ 1				0.1				99.9
28	MOXA	705869	⬇ 2		⬆ 1		98.8		0.9	0.3
29	MATHSareREAL	671073	⬇ 1	⬇ 2	⬇ 1		96.0		2.9	1.1
30	MBAi.Cloud	544243	⬇ 1						100.0
31	Rechenkraft.net	502178	⬇ 4	⬇ 2			4.4	61.7	2.8	5.7	24.6	0.8
32	citizenscience.ru	434492	⬇ 2	⬇ 1			82.5	7.3	3.6	0.8	3.2	2.6
33	Terry Kim Team	429414		⬇ 1			98.2		0.9	0.3
34	Buhr	400308	⬆ 2	⬇ 1			64.8	1.5	21.2	6.3	6.2
35	GIMPS.Korea	386440	⬆ 49	⬆ 1			85.0	4.8	8.9	1.1	0.2
36	Smoke-it	318087	⬇ 4	⬇ 2			91.4	5.9	1.8	0.1
37	S485122	313438	⬇ 3	⬇ 2				95.0		5.0
38	NerdyGirls	214260	⬆ 10	⬆ 5	⬆ 1		3.8	39.9	9.6	46.8
39	YahsTeam	208694	⬆ 2	⬇ 1	⬇ 1		87.4		10.9	1.7
40	GIMPS China	199907	⬇ 9	⬇ 3			96.0		1.2	0.3	2.4
41	Canada	198766	⬆ 2	⬇ 2				4.2	62.1	32.5
42	Team Tartan	197944	⬆ 2	⬇ 2					77.4	22.6
43	randomteam	188950	⬆ 4	⬇ 1							100.0
44	GIMPS Team Philippines	187833	⬆ 1	⬆ 2			85.1		2.2	1.9	10.7
45	BitMEX Research	174816	⬇ 6	⬇ 4					94.9	5.1
46	nranks	157495		⬇ 2			45.9	0.8	3.9	1.1	48.3
47	OverclockerAustralia	147192	⬆ 2				59.7		21.2	15.6
48	Team China	125615	⬆ 6	⬆ 3					99.7	0.3
49	GIMPS.NZ	121881	⬆ 1	⬆ 1	⬆ 1		79.0		10.2	10.8
50	Cap'n Entropy's Cavalcade of Wonderment	121617	⬆ 1	⬇ 1	⬇ 1		78.2	4.8	14.8	2.2
51	Wisconsin	116642	⬆ 2	⬆ 1			54.0		26.8	19.2
52	SASAKI	116086		⬆ 1			100.0
53	EgyptianPolymaths	110373	⬆ 6	⬆ 1	⬆ 2		1.3	27.1		0.9	65.8
54	Georgia Tech	103956	⬇ 17	⬇ 9			96.9	0.8	2.2
55	UW Eau Claire	102440	⬆ 187	⬆ 19	⬆ 2	⬆ 1			76.8	23.2
56	Unicamp	99297	⬆ 21			⬇ 1	73.3	0.3	20.7	5.7
57	404 - "Primes not Found"	95769	⬆ 14	⬆ 12	⬆ 4	⬆ 1	51.8		48.2
58	Hungary	95218	⬆ 5	⬇ 3		⬇ 1	0.6	0.1	1.9	2.9	94.1
59	Team Finland	88062	⬇ 21	⬇ 11	⬇ 6		84.3	0.4	15.1		0.3
60	LTT fans	80332	⬆ 1				55.4		8.6	2.6	33.4
61	Net-Work	78679	⬆ 1		⬆ 1		0.7	3.2			88.0
62	SHADO	76668	⬆ 2	⬇ 4	⬇ 3				61.2	17.8	12.0	2.8
63	GIMPS.France	76409	⬇ 8	⬆ 4	⬆ 4		14.6	34.9	6.2	25.9	18.1
64	Esperanto	75990	⬇ 6	⬇ 2				22.9	23.3	53.6	0.2
65	Eratosthenes Sieve	75381		⬇ 2	⬆ 1		0.7		99.3
66	UIUC	74066		⬇ 2	⬇ 1				68.9	31.1
67	Colorado School of Mines	73217	⬆ 64	⬆ 35	⬆ 3		79.3		14.9	5.7
68	Brno University of Technology	70559	⬇ 8	⬇ 11	⬇ 5			36.3	53.2	10.4
69	GIMPS.NEO	65572	⬇ 2	⬇ 4	⬇ 1				74.3	25.7
70	Team Israel	62941	⬇ 1	⬇ 4	⬇ 1		96.6		1.3	2.2
71	ParadoxZ Commando	58821	⬆ 1		⬆ 2				74.7	25.2
72	AMD Users	58620	⬇ 15		⬇ 1		79.6		14.8	5.6
73	Team_Italia	56826	⬆ 1	⬇ 3	⬇ 1		2.3		72.4	18.0	2.1	4.5
74	AJ	51676	⬆ 1	⬆ 3					75.6	24.4
75	Team Belgium	49486	⬇ 7	⬇ 2			1.6	7.1	39.9	14.6	36.8
76	S147127	48686			⬆ 1	⬆ 1	20.1		9.7	70.2
77	ComputerraRU	48521	⬇ 21	⬇ 9	⬇ 1	⬇ 1	16.2		75.8	8.0
78	Wile E. Coyote	44682	⬆ 4	⬆ 2	⬆ 1				81.0	5.9	13.2
79	Team Viet Nam	44328	⬇ 39	⬇ 1	⬇ 1		27.5		30.0	31.9	10.5
80	Team Austria	42733	⬇ 7	⬇ 1			98.8			1.2
81	MES-Team	41980	⬇ 11	⬇ 6			72.2	7.5		20.3
82	LimePrime	39384	⬇ 3	⬇ 1				6.6	88.8	4.6
83	Team H	35820	⬇ 3	⬇ 1	⬆ 1		9.0	1.5	89.0	0.5
84	socal_prime	35786	⬇ 6	⬇ 1	⬇ 1			1.1	66.7	32.0	0.1
85	Hermessz	32207	⬇ 2	⬇ 1			59.2		40.8
86	huskers-gimps	31043	⬆ 15	⬆ 1	⬆ 2				77.4	22.6
87	HardOCP	30580	⬆ 4	⬇ 2	⬇ 1				78.2	21.8
88	Small-Team-2000	29404		⬇ 2	⬇ 1				10.6	89.3
89	Debian	28506	⬆ 6	⬇ 1					98.1	1.9
90	MadPoo	25623	⬇ 48	⬇ 31				18.3	15.9	65.7
91	Costa Rica	22787	⬇ 1	⬇ 1					71.3	28.3
92	Team Norway	20992	⬆ 4	⬆ 4	⬆ 1		84.1			2.4	12.4	1.2
93	Team Retired	20841	⬆ 1	⬆ 2	⬆ 1				26.3	10.1
94	Portland State University	19799	⬇ 9	⬇ 2	⬇ 2		20.5	23.5	43.7	12.3
95	PrimitiveRootsCircle	18997	⬆ 12	⬆ 6	⬆ 5		34.7		41.3	21.6	2.5
96	Ozzie Prime	18912	⬇ 7	⬆ 2	⬇ 1			4.5	61.5	12.8		21.1
97	NanJing Tech	18715	⬆ 145	⬆ 138	⬆ 15	⬆ 4			100.0
98	A Single Engineer	18654	⬇ 1	⬆ 2		⬇ 1			78.4	21.6
99	Quantus	18006	⬇ 6	⬇ 8	⬇ 3	⬇ 1	8.9		30.1	25.9		35.1
100	The Fellowship of Infinity	17916	⬆ 32	⬆ 9	⬆ 1	⬇ 1			99.5	0.5
101	SpartaAlumni	17866	⬇ 9	⬇ 8	⬇ 2	⬇ 1			71.1	28.9
102	Spain	16585	⬇ 16	⬇ 13	⬇ 5		20.8		51.8	27.4
103	Team Slovenia	16578	⬇ 16	⬇ 9					74.6	25.4
104	Nerdfighters for Mersenne Primes	16248		⬇ 1	⬆ 1		2.9		80.8	16.3
105	GIMPS.Taiwan	15799	⬇ 6	⬇ 6	⬇ 1				88.4	11.2
106	Channel 4	15772	⬇ 3	⬇ 1	⬇ 4				85.0	15.0
107	MurrayInfoSys	14817	⬆ 12	⬆ 8	⬇ 1				63.5	36.4
108	GIMPS.Portugal	14619		⬇ 1	⬇ 1		0.1	71.6		28.3
109	Politeknik Banting, Selangor	14265	⬇ 28	⬇ 12	⬇ 1		77.6		5.5	16.8
110	ᕙ(⇀‸↼‶)ᕗ	14198	⬆ 34	⬆ 6	⬆ 1				99.5	0.5
111	moeses	13969	⬇ 1		⬇ 2				99.3	0.7
112	Granada	13845	⬇ 3	⬇ 4	⬇ 2		34.0		5.6	59.9
113	Hyperion	13775	⬇ 1	⬇ 3					1.9	29.8
114	MES22-Team	13207	⬇ 16	⬇ 10			100.0
115	SETI.Germany	12752		⬇ 3	⬆ 1	⬆ 1		7.4	24.8	67.7
116	youngfun429	12577	⬇ 11	⬇ 10	⬇ 1	⬇ 1			61.6	38.4
117	VIPR	12151	⬇ 1		⬆ 1	⬆ 1			71.1	28.9
118	Mensa	12124			⬇ 1	⬇ 1			70.9	29.1
119	FREE ROBUX	10852	⬆ 123	⬆ 116					100.0
120	Die Zeitfinder	10777	⬇ 9	⬇ 6					100.0
121	Royal Military College of Canada	10691	⬆ 121	⬇ 2			89.7		7.9	2.4
122	Abacus	10327	⬆ 6	⬇ 2					92.1	7.9
123	nmbarek_team	9947	⬇ 3		⬆ 1				99.8	0.2
124	FreeBSD	9772	⬇ 18	⬇ 11	⬇ 1		10.6		77.2	12.2
125	JiBoTeam	9662	⬇ 2	⬆ 2	⬆ 1	⬆ 3				100.0
126	Triangle	9580	⬇ 9	⬇ 1	⬇ 1	⬇ 1			96.5	3.5
127	Syntony	9528	⬇ 1	⬇ 1	⬆ 1					100.0
128	Shaffer's Studio	8957	⬇ 4	⬇ 4	⬆ 1	⬆ 2			86.2	13.7
129	Turku	8797	⬇ 29	⬇ 7	⬆ 4	⬇ 3			100.0
130	TurkishMath	8560	⬇ 9	⬇ 9	⬇ 3	⬇ 1			91.1	8.9
131	Server66	8528	⬇ 6	⬇ 3	⬇ 1		100.0
132	NUST	8499	⬆ 110	⬆ 30	⬆ 4		12.8	82.2		5.0
133	Furry Primes	8022	⬆ 1	⬇ 3	⬇ 2		58.8		27.1	14.1
134	Aiblspitz	7920	⬆ 6	⬇ 1	⬇ 2		2.1	59.6	20.0	16.3	2.1
135	irowiki	7815	⬇ 6	⬇ 6						100.0
136	Team Splunk	7605	⬇ 3	⬇ 4	⬇ 2			28.1	71.9
137	Brasil	7144	⬇ 7	⬇ 6					76.3	23.7
138	WSU Cougars	6864	⬆ 1	⬇ 3					56.6	43.3
139	Prime Rib	6851	⬇ 26	⬇ 3					97.2	2.8
140	SU Prime Pirates	6437	⬆ 3	⬇ 3					61.5	38.5
141	University of Waterloo	6259	⬆ 6	⬇ 7					100.0
142	Com Systems (RU)	6153	⬆ 47	⬆ 11	⬆ 1				63.2	36.8
143	Elisabeth-von-Thadden-Schule	6033	⬆ 5	⬇ 1	⬆ 1				38.4	61.6
144	Team Christensen	6001	⬇ 3	⬇ 3	⬇ 2					100.0
145	GIMPS Romania	5527			⬆ 1				100.0
146	International School of Beijing (ISB)	5391	⬇ 11	⬇ 8	⬆ 1				99.6	0.4
147	Optimists Prime	5374	⬇ 1		⬆ 1			54.9	41.1	4.0
148	The_Dude_Abides	5289	⬇ 21	⬇ 8	⬆ 2		37.3			53.3
149	zeit	5065	⬇ 12	⬇ 5			3.3			96.7
150	teamMALI	4899	⬇ 1	⬇ 7	⬇ 5				79.4	20.6
151	3DCenter.org	4740	⬇ 13	⬇ 5							100.0
152	Danpi for GIMPS	4710	⬇ 2	⬇ 4	⬆ 1		100.0
153	ANDY	4448		⬇ 3	⬆ 2				99.3	0.6
154	The East Coast	4426	⬇ 52	⬇ 3	⬆ 2		99.3	0.7
155	Hong Kong GIMP	4406	⬆ 6	⬇ 6	⬇ 1				70.8	29.2
156	Kabylie	4383	⬇ 1	⬇ 4	⬆ 1		15.0	4.6	35.5	44.8	0.1
157	GIMPS.Hong Kong	4263	⬇ 5	⬇ 2	⬆ 1		3.0		54.5	42.5
158	Olympic College	4166	⬆ 1	⬇ 1	⬆ 1					100.0
159	Black Mesa	3971	⬇ 45	⬇ 20	⬇ 7				84.0	16.0
160	Phi Kappa Theta	3602	⬆ 7		⬆ 2				65.5	34.5
161	TunisianTeam	3415	⬇ 7	⬇ 3	⬇ 1				22.7	77.3
162	Zorin OS Crew	3198	⬇ 4	⬇ 1	⬆ 2				70.1	29.8
163	Team_Brazil	2999	⬆ 6	⬆ 1	⬆ 2		83.1	0.2		16.7
164	I Love Canadian Natural Resources	2921	⬆ 7	⬇ 5	⬇ 3					100.0
165	México mágico	2887	⬆ 53	⬆ 23	⬆ 8	⬆ 9			82.1	17.9
166	FactorMania	2761	⬆ 76	⬆ 24	⬆ 14	⬆ 9		66.5			33.5
167	Subprime Searches	2630	⬇ 7		⬇ 1	⬇ 2	90.3			9.7
168	EggCelentes	2574	⬆ 5	⬇ 2	⬇ 1	⬇ 2			42.1	57.9
169	Artists of Fine Art	2524	⬇ 33	⬇ 15	⬇ 6	⬇ 2			90.9	9.1
170	Noam Karni Team	2360	⬆ 22	⬆ 17		⬇ 2			67.0	33.0
171	VRS_SE	2359	⬆ 14	⬇ 3	⬇ 2	⬇ 2			66.8	33.2
172	Korea.Prime	2330	⬆ 27	⬆ 17	⬇ 1	⬇ 2			67.0	32.9
173	Saudi Primes	2268	⬇ 3	⬇ 8	⬇ 1	⬇ 2				100.0
174	alan145	2197	⬇ 12	⬇ 18	⬇ 6	⬇ 2	80.6	1.4		0.3	17.7
175	GIMPSMalaysia	2120	⬆ 46	⬆ 16	⬆ 14	⬇ 2			75.4	24.5
176	The Pensis	1869	⬆ 1	⬇ 3	⬇ 2					100.0
177	F=dp/dt	1845	⬆ 1	⬇ 3	⬇ 2				85.8	14.2
178	Obsidian	1821	⬆ 1	⬆ 1	⬇ 1					100.0
179	The Prime Pioneers	1777	⬆ 15	⬆ 14	⬆ 8	⬆ 3	17.1	60.9		14.3	7.6
180	His Dark Materials	1746	⬇ 17	⬇ 9	⬇ 4	⬇ 1				49.4	50.5
181	GIMPS_IOM	1712	⬇ 1	⬇ 6	⬇ 3	⬇ 1	100.0
182	BrainStone	1712	⬇ 14	⬇ 19	⬇ 3	⬇ 1				100.0
183	Crunching@EVGA	1668	⬆ 59	⬇ 7	⬇ 2				100.0
184	RobotechResearch	1594	⬆ 58	⬇ 7	⬇ 2				100.0
185	San Francisco	1586	⬇ 2	⬇ 7	⬇ 2				100.0
186	cr_colorado	1549	⬆ 4	⬆ 15	⬆ 11					100.0
187	UCLA Linux Users Group	1536	⬇ 30	⬇ 17	⬇ 3				100.0
188	TimE4This	1481	⬇ 13	⬇ 6	⬇ 3					100.0
189	OcUK - Overclockers UK	1409	⬇ 15	⬇ 6	⬇ 3				100.0
190	Happy	1341	⬇ 4	⬇ 5	⬇ 2						99.9
191	GIMPS_KS	1096	⬆ 51	⬆ 39	⬆ 13					97.2	2.8
192	Manri Costa Rica	984	⬇ 28	⬆ 2	⬇ 1				77.7	22.3
193	GIMPS Asturias	794	⬆ 2	⬆ 3	⬇ 1				99.6	0.4
194	Weatopians	793	⬆ 2	⬆ 3	⬇ 1				99.7	0.3
195	Sæve Nordic Prime	792	⬆ 2	⬆ 3	⬇ 1				98.6
196	Math_Lovers	782	⬇ 8	⬇ 10	⬇ 6					100.0
197	hreid	776	⬇ 10	⬇ 16	⬇ 2				100.0
198	crazyBerlin	774	⬇ 56	⬆ 1	⬇ 2				100.0
199	ISISS Valle Seriana	770	⬇ 1	⬆ 1					98.4	1.6
200	NuggetFarms	764	⬇ 44	⬇ 20					100.0
201	Czech National Team	731	⬇ 50	⬇ 32			5.1			90.9	2.4
202	SGDynamo Dresden	581	⬆ 1				100.0
203	Team Bulgaria	574	⬇ 2							37.0	62.9
204	TeamEc	552	⬆ 1	⬆ 1	⬆ 1					75.6	24.4
205	PrimeObsession	539	⬆ 37	⬆ 30	⬆ 1					100.0
206	Morocco	531	⬆ 36	⬆ 29	⬆ 10					100.0
207	math.auth.gr	518	⬆ 3							100.0
208	Join Us 😈	517	⬆ 3				100.0
209	London Computation Club	478	⬆ 6	⬆ 2	⬆ 1					100.0
210	Team Dominik Radler	413	⬇ 3	⬇ 4	⬆ 1		100.0
211	Team Ribbs	336	⬇ 2	⬆ 1	⬆ 1					100.0
212	KnightLight	315	⬆ 8	⬆ 1	⬆ 1					99.3
213	/r/counting	277	⬆ 19	⬆ 12	⬆ 13	⬆ 9
214	Unteranger Primelurche	273	⬇ 10	⬇ 10		⬇ 1				100.0
215	Pi Rho	265	⬆ 27	⬆ 20	⬆ 20	⬇ 1				100.0
216	www.Adamek.biz	265	⬆ 6		⬇ 1	⬇ 1				100.0
217	Therian Primes	262	⬆ 25	⬆ 18		⬇ 1				100.0
218	Math Teachers of the World	259	⬇ 5	⬇ 1		⬇ 1			100.0
219	GIMPS Hams	253	⬆ 4	⬇ 1		⬇ 1		100.0
220	The Goodest Team	253	⬆ 4	⬇ 1		⬇ 1				100.0
221	Lithuania LT	247	⬇ 5	⬇ 1		⬇ 1				100.0
222	Prime-UAE	246	⬇ 38	⬇ 13		⬇ 1				100.0
223	DividerHunt	221	⬆ 5				100.0
224	yfinder	208	⬆ 2	⬇ 3						100.0
225	Name (t) = A x e^kt	207	⬇ 11	⬇ 15	⬇ 16					100.0
226	30thousandwon	193	⬇ 26	⬇ 4	⬇ 1					100.0
227	GIMPS.Peace	122	⬆ 15	⬆ 1			44.7	55.3
228	TeamUbuntu	121	⬆ 5	⬇ 1						100.0
229	FourthFloorFourEyes	46	⬇ 27				100.0
230	PROMYS	23	⬆ 4	⬆ 1							100.0
231	ALGERIA	16	⬆ 6	⬆ 2							100.0
232	sannerud.com	10	⬆ 3								100.0
233	CZAsTc	6	⬆ 8	⬆ 1						97.2
234	Team Ireland	3	⬇ 52	⬇ 20						98.7