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 2026-03-12 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	930437499					0.3		0.1		99.6
2	Slovakia	765864805	⬆ 1				0.1	97.8			2.0
3	POLAND	403167147	⬆ 1				0.3	98.9	0.2		0.7
4	PrimeNet	337617788	⬇ 2					97.4	0.3	0.4	1.9
5	-Too many Ones-	189460426					0.2	92.1			7.6
6	Ars Technica Team Prime Rib	71690079						98.6	0.1	1.3
7	unRAID	33456828						99.6	0.4
8	GIMPSChina	22520341					74.2	17.8	4.0	0.6	3.3
9	More Power!!!	14648711	⬆ 1	⬆ 1			13.6	56.5	1.9	0.9	27.2
10	One Man Team	13946741	⬇ 1	⬇ 1				99.4	0.6
11	GW's legions	12792531					0.1	0.9	31.0	1.0	67.1
12	UCM-curtisc	11880766	⬆ 1						99.3	0.7
13	Team-Deutschland	11306887	⬇ 1				3.7	11.1	0.4	0.1	84.6
14	TeamUK	7501959					41.3	4.9	18.2	1.3	34.1	0.1
15	szerverem.hu	7309777	⬆ 223				5.8	37.0	45.8	5.1	6.2
16	Porta Kruse	6427576	⬆ 12				2.0	0.2		0.1	91.5	6.1
17	GPU to 72	4606442	⬇ 2				55.5	25.5	0.5	3.9	14.4
18	SpongeBob SquarePants	3149775	⬇ 2					31.0	59.4	9.3	0.3
19	Numberphile	2904512	⬇ 1				28.4	41.4	22.4	6.6	0.9
20	tsc	2325463	⬇ 1				90.0	5.8	1.5	0.3	2.4
21	Wikipedia	2001510		⬆ 2	⬆ 1		59.4	33.3	4.0	2.2	0.8
22	UKRAINE	1996231	⬇ 2		⬇ 1		28.0	13.0	43.4	15.5
23	Dutch Power Cows	1875481	⬇ 6	⬇ 2			33.0	27.6	1.3	1.4	36.6
24	UW Eau Claire	1504704	⬆ 57	⬆ 12	⬆ 4		85.5		10.7	3.8
25	Swedes Of Primes	1440545	⬇ 3	⬇ 1	⬇ 1		0.4	83.0	14.1	2.5
26	GIMPS.USA	1390809	⬇ 2	⬇ 1	⬇ 1		4.7	0.2	3.9	1.4	89.7
27	GIMPS.Japan	1356761	⬇ 4	⬇ 1			4.4	0.1	8.7	2.1	84.7
28	GIMPS.Occitania	1302492	⬇ 3	⬇ 1	⬇ 2			4.1				95.9
29	MBAi.Cloud	712903	⬆ 1	⬆ 1					100.0
30	GIMPS.Korea	699130	⬆ 8	⬆ 1	⬆ 1		88.8	4.5	5.8	0.8	0.1
31	MATHSareREAL	643814	⬇ 5	⬇ 2	⬆ 1		95.5		3.3	1.2
32	MOXA	636663	⬇ 5	⬇ 4	⬇ 2		98.9		0.7	0.4
33	citizenscience.ru	488399	⬇ 2	⬆ 1	⬆ 2		85.8	5.5	3.9	0.9	3.3	0.6
34	Rechenkraft.net	462436	⬇ 5	⬇ 2	⬇ 1		4.7	58.1	3.0	5.6	28.0	0.6
35	Terry Kim Team	449428	⬇ 3	⬇ 2	⬇ 1		97.8		1.2	0.6
36	Buhr	445055	⬇ 2	⬇ 1			60.2	3.2	19.5	5.9	11.2
37	S485122	310062	⬇ 2					95.1		4.9
38	Smoke-it	269947	⬇ 5				90.6	7.0	1.8
39	YahsTeam	215344	⬇ 2				88.6		9.4	2.0
40	randomteam	208173	⬆ 2	⬆ 2	⬆ 1						100.0
41	GIMPS Team Philippines	205942	⬆ 3	⬆ 2	⬆ 2		74.6		3.3	1.6	18.8
42	NerdyGirls	205738	⬆ 4	⬇ 2			0.3	41.7	7.5	50.5
43	404 - "Primes not Found"	204591	⬆ 27	⬆ 5	⬆ 2		79.6		20.4
44	Canada	197545	⬇ 5	⬇ 3				3.0	65.8	30.1
45	nranks	196253		⬆ 2	⬇ 5		36.1	0.6	4.0	0.4	58.9
46	Team Tartan	191031	⬇ 6	⬇ 2					76.8	23.2
47	Colorado School of Mines	185129	⬆ 56	⬆ 4			90.0		7.6	2.4
48	OverclockerAustralia	147944		⬆ 1	⬆ 1		59.4		21.1	16.0
49	GIMPS China	147590	⬇ 13	⬇ 4	⬇ 1		92.8		3.5	0.2	3.2
50	BitMEX Research	140333	⬇ 9	⬇ 4					95.6	4.4
51	Team China	126065	⬆ 1	⬇ 1					99.7	0.3
52	GIMPS.NZ	121218	⬇ 2				78.8		10.2	11.0
53	Unicamp	117175	⬆ 5	⬆ 3			72.0	0.3	22.9	4.9
54	SASAKI	112731	⬇ 1	⬇ 1			100.0
55	EgyptianPolymaths	109660	⬇ 1					38.4			56.6
56	Wisconsin	104171	⬇ 5	⬆ 1	⬆ 1		49.9		26.5	23.7
57	Cap'n Entropy's Cavalcade of Wonderment	103319	⬇ 8	⬇ 3	⬇ 1		75.7	5.4	16.5	2.4
58	GIMPS.France	99652	⬆ 11	⬆ 2			11.2	55.1	4.8	14.9	13.9
59	SHADO	84433	⬆ 1	⬆ 2	⬆ 1				64.6	16.7	11.0	2.0
60	Hungary	82416	⬇ 4	⬇ 1	⬇ 1		0.5		2.2	2.7	94.1
61	UIUC	77875	⬆ 4	⬆ 2					70.0	30.0
62	Net-Work	76449					2.9	1.9			86.5
63	Eratosthenes Sieve	73995	⬆ 1	⬆ 1			0.7		97.4	1.8
64	AMD Users	72129	⬆ 7	⬆ 6	⬆ 1		64.7	0.8	13.2	20.8	0.5
65	Esperanto	70411	⬇ 2		⬇ 1			24.8	12.0	63.1	0.2
66	AJ	61348	⬆ 11	⬆ 8	⬆ 1				75.4	24.6
67	Team Israel	58754	⬆ 1	⬆ 2	⬇ 1		97.3		1.3	1.3
68	Team_Italia	58564	⬆ 5	⬆ 4	⬆ 2	⬆ 1	2.7		68.1	22.6	2.1	3.8
69	ParadoxZ Commando	58329	⬆ 5	⬆ 4		⬆ 1			72.1	27.9
70	GIMPS.NEO	58312	⬇ 4	⬇ 2	⬇ 2	⬇ 2			75.8	24.2
71	Wile E. Coyote	57321	⬆ 8	⬆ 7	⬆ 2				78.5	2.8	18.7
72	Brno University of Technology	55848	⬇ 13	⬇ 1	⬇ 1			20.3	63.2	16.5
73	Team Belgium	54229	⬇ 1	⬆ 2	⬆ 1	⬆ 1	1.4	7.6	36.6	14.1	40.3
74	LTT fans	54193	⬇ 13	⬇ 8	⬆ 2	⬇ 1	42.8		5.7	0.8	50.7
75	S147127	54183	⬆ 1	⬆ 1			25.1		10.7	64.1
76	ComputerraRU	49971	⬇ 9	⬆ 1	⬆ 1		15.3		75.2	9.4
77	IOTA	46097	⬆ 161	⬆ 21	⬆ 3	⬆ 1	94.1		3.6	2.3
78	Georgia Tech	45668	⬇ 35	⬇ 20	⬇ 6	⬇ 1	80.2		19.8
79	Team Viet Nam	43404	⬇ 24		⬇ 1		28.1		30.7	30.5	10.7
80	Team Austria	39218	⬇ 2		⬇ 1		93.8	0.5	4.4	1.3
81	Team H	35605	⬆ 1	⬆ 1			11.2	0.8	87.5	0.5
82	HardOCP	34669	⬆ 4	⬆ 5		⬆ 1			77.9	22.1
83	Turku	34497	⬆ 34	⬆ 9	⬆ 7	⬆ 1			100.0
84	Hermessz	34481			⬇ 1	⬇ 2	63.9		36.1
85	NanJing Tech	34237	⬆ 153	⬆ 12	⬆ 7	⬆ 2	0.1		85.4	14.5
86	Debian	34048	⬆ 2	⬆ 2		⬇ 1			98.4	1.6
87	MES-Team	33521	⬇ 12	⬇ 4	⬇ 3	⬇ 1	72.1	7.5		20.4
88	huskers-gimps	33242	⬆ 1	⬇ 2	⬇ 3				73.4	26.6
89	socal_prime	32775	⬇ 6	⬇ 4	⬇ 2			0.9	66.5	32.4	0.1
90	LimePrime	29643	⬇ 10	⬇ 9	⬇ 2			4.8	89.1	6.2
91	Small-Team-2000	28702	⬇ 4	⬇ 2					10.9	89.1
92	Argentina	26324	⬆ 146	⬆ 138	⬆ 65	⬆ 4			100.0
93	á•™(⇀‸↼‶)á•—	24845	⬆ 27	⬇ 2	⬆ 1	⬇ 1	0.9		98.7	0.4
94	Channel 4	23246	⬆ 10	⬇ 1	⬆ 1	⬇ 1			81.8	18.2
95	VIPR	22443	⬆ 20	⬆ 13	⬆ 2	⬇ 1	53.0		31.6	15.5
96	The Fellowship of Infinity	21832	⬆ 15	⬇ 1		⬇ 1			99.5	0.5
97	Costa Rica	20557	⬇ 6	⬇ 7	⬇ 4				70.6	29.0
98	Team Finland	20084	⬇ 51	⬇ 31	⬇ 9		32.7		66.0		1.3
99	Team Retired	20060	⬇ 4	⬇ 5	⬇ 1				27.3	10.5
100	Ozzie Prime	19792	⬇ 2	⬆ 3	⬇ 1			4.3	50.6	12.4		32.7
101	PrimitiveRootsCircle	19161	⬇ 1	⬇ 5	⬇ 1		28.0		45.4	24.1	2.5
102	MurrayInfoSys	18791	⬆ 14	⬆ 2	⬆ 1				66.9	33.0
103	A Single Engineer	18242	⬇ 4	⬇ 3	⬇ 2				72.0	28.0
104	Portland State University	17895	⬇ 10	⬆ 2	⬇ 2		22.7	25.1	40.2	12.0
105	SpartaAlumni	17581	⬇ 12	⬇ 4	⬇ 1				70.7	29.3
106	Team Norway	16083	⬇ 10	⬇ 7	⬆ 1		81.1			4.7	14.0
107	Quantus	15650	⬇ 17	⬇ 5	⬇ 1		7.8		24.8	27.1		40.4
108	Nerdfighters for Mersenne Primes	15393		⬆ 1			1.1		85.8	13.1
109	MadPoo	15299	⬇ 52	⬇ 4	⬇ 4			30.7		69.3
110	Spain	14667	⬇ 25	⬆ 1	⬇ 1				63.9	36.1
111	GIMPS.Portugal	14450	⬇ 5	⬇ 1	⬇ 1		0.1	72.4		27.5
112	SETI.Germany	14419	⬆ 2	⬆ 3	⬇ 1			6.6	22.0	71.4
113	NUST	13474	⬆ 59	⬆ 5	⬆ 3		11.8	78.8	6.2	3.2
114	GIMPS.Taiwan	12906	⬇ 13	⬇ 1	⬇ 1				85.8	13.7	0.1
115	moeses	12572	⬇ 8	⬆ 1	⬇ 1				99.1	0.9
116	Team Slovenia	12508	⬇ 19	⬇ 9	⬇ 4				74.4	25.6
117	Granada	12255	⬇ 8	⬆ 2	⬇ 2		31.3		12.8	55.3
118	Mensa	11954		⬇ 1		⬆ 1			78.9	21.1
119	Politeknik Banting, Selangor	11924	⬇ 27	⬇ 7	⬇ 2	⬇ 1	85.7		6.6	7.7
120	Abacus	11660	⬆ 3		⬇ 1				95.1	4.9
121	FREE ROBUX	10852	⬆ 117	⬆ 1					100.0
122	Hyperion	10791	⬇ 12	⬇ 8	⬇ 2				2.4	30.2
123	Royal Military College of Canada	10691	⬇ 4		⬇ 1		89.7		7.9	2.4
124	FreeBSD	10084	⬇ 12	⬆ 3	⬇ 1		0.5		82.7	16.8
125	Server66	9937	⬆ 3	⬆ 7	⬇ 1		100.0
126	Aiblspitz	9702	⬆ 7	⬆ 7	⬆ 7	⬆ 1	1.7	67.0	16.3	13.3	1.7
127	MES22-Team	9680	⬇ 25	⬇ 3	⬇ 2	⬇ 1	100.0
128	Com Systems (RU)	9520	⬆ 25	⬆ 8	⬇ 2				65.4	34.6
129	Syntony	9317	⬇ 4	⬇ 3	⬇ 2					100.0
130	Die Zeitfinder	9240	⬇ 17	⬇ 5	⬇ 1				100.0
131	RobotechResearch	8926	⬆ 46	⬆ 30	⬆ 3				45.1	54.9
132	Shaffer's Studio	8910	⬇ 6	⬇ 3	⬇ 2				87.0	12.9
133	Triangle	8851	⬇ 11	⬇ 3	⬇ 2				96.4	3.6
134	youngfun429	8659	⬇ 29	⬇ 13	⬇ 6				62.6	37.4
135	JiBoTeam	8038	⬇ 6	⬇ 7	⬇ 3					100.0
136	irowiki	7828	⬇ 9	⬇ 1	⬇ 1					100.0
137	Team Splunk	7605	⬇ 5		⬇ 1			28.1	71.9
138	University of Waterloo	7044	⬇ 4	⬆ 5	⬇ 1				100.0
139	TurkishMath	7023	⬇ 15	⬇ 8	⬇ 1				89.1	10.9
140	Brasil	6856	⬇ 9	⬆ 1					79.7	20.2
141	Furry Primes	6838	⬇ 11	⬇ 7	⬇ 2		67.6		15.8	16.6
142	Prime Rib	6524	⬇ 6	⬇ 4	⬇ 1				96.8	3.2
143	SU Prime Pirates	6437	⬇ 5	⬇ 3	⬇ 1				61.5	38.5
144	Team Christensen	5894	⬇ 4	⬆ 1						100.0
145	GIMPS Romania	5815		⬇ 3					95.5	4.5
146	Elisabeth-von-Thadden-Schule	5757	⬇ 4	⬇ 2	⬇ 3				40.3	59.7
147	The_Dude_Abides	5119	⬇ 6	⬇ 1		⬆ 1	37.0			52.0
148	WSU Cougars	5103	⬇ 13	⬇ 9	⬇ 2	⬆ 1			60.8	39.1
149	nmbarek_team	4957	⬇ 28	⬇ 2	⬇ 1	⬆ 1			99.7	0.3
150	teamMALI	4911	⬇ 3	⬇ 1	⬇ 1	⬇ 3			79.4	20.6
151	Hong Kong GIMP	4900		⬇ 3	⬇ 1				63.6	36.4
152	Danpi for GIMPS	4710	⬇ 4	⬇ 1			100.0
153	zeit	4517	⬇ 10	⬇ 3	⬇ 2		2.4			97.6
154	México mágico	4194	⬆ 28	⬆ 9	⬆ 4				75.5	24.5
155	Crunching@EVGA	4104	⬆ 41	⬆ 12	⬆ 4				99.7	0.3
156	Olympic College	4082	⬇ 1	⬇ 1	⬇ 3					100.0
157	Kabylie	3786	⬇ 5	⬇ 1	⬇ 3		14.9	4.3	41.1	39.7
158	FactorMania	3584	⬆ 58	⬆ 7	⬇ 2			58.4			41.6
159	3DCenter.org	3492	⬇ 15	⬇ 5	⬇ 4						100.0
160	Korea.Prime	3376	⬆ 30	⬆ 12	⬆ 1				69.6	30.4
161	Noam Karni Team	3156	⬆ 28	⬆ 9	⬇ 1				75.1	24.9
162	GIMPS.Hong Kong	3016	⬇ 6	⬇ 2	⬆ 1		2.7		51.1	46.2
163	Team_Brazil	2999	⬆ 1	⬆ 1	⬆ 1		83.1	0.2		16.7
164	Phi Kappa Theta	2827	⬇ 4	⬇ 6	⬆ 1				55.8	44.1
165	I Love Canadian Natural Resources	2507	⬇ 6	⬆ 3	⬆ 1					100.0
166	Pi Rho	2499	⬆ 72	⬆ 3	⬆ 1				67.1	32.9
167	GIMPSMalaysia	2394	⬆ 24	⬆ 8	⬆ 2				66.8	33.2
168	VRS_SE	2359	⬆ 1	⬆ 3	⬆ 2				66.8	33.2
169	International School of Beijing (ISB)	2316	⬇ 30	⬇ 12	⬇ 7				99.3	0.7
170	TunisianTeam	2303	⬇ 12	⬇ 11	⬆ 1				33.6	66.4
171	Saudi Primes	2268	⬇ 6	⬆ 2	⬆ 1					100.0
172	GIMPS_KS	2194	⬆ 61	⬆ 2	⬆ 1				36.6	62.0	1.4
173	The Prime Pioneers	2122	⬆ 22	⬇ 7	⬇ 5		1.1	98.8
174	Subprime Searches	2002	⬇ 6	⬆ 2			87.2			12.8
175	The Pensis	1869	⬇ 2	⬆ 2						100.0
176	F=dp/dt	1845	⬇ 2	⬆ 2					85.8	14.2
177	Obsidian	1821	⬆ 2	⬆ 2						100.0
178	GIMPS_IOM	1712	⬇ 2	⬆ 2	⬆ 1	⬆ 1	100.0
179	Zorin OS Crew	1712	⬇ 18	⬇ 17	⬇ 1	⬇ 1			45.1	54.9
180	San Francisco	1586	⬇ 2	⬆ 4	⬆ 1				100.0
181	ANDY	1583	⬇ 32	⬆ 2	⬇ 1				98.7	1.3
182	cr_colorado	1549	⬆ 21	⬆ 3						100.0
183	CZAsTc	1447	⬆ 54	⬆ 5	⬆ 1				99.6	0.4
184	Optimists Prime	1369	⬇ 38	⬇ 31	⬇ 1			100.0
185	math.auth.gr	1355	⬆ 24	⬆ 4	⬆ 1				61.7	38.3
186	His Dark Materials	1334	⬇ 19	⬇ 5	⬇ 1					48.8	51.1
187	TimE4This	1266	⬇ 3							100.0
188	Czech National Team	1182	⬇ 26	⬆ 20	⬆ 1		3.2		70.1	24.2	1.5
189	Morocco	1062	⬆ 49	⬆ 4	⬆ 1	⬆ 1				100.0
190	alan145	1057	⬇ 33	⬇ 8	⬇ 2	⬇ 1	94.7	2.8		0.4	2.0
191	Therian Primes	925	⬆ 47	⬆ 24				15.9		57.0	27.1
192	Happy	807	⬇ 5	⬇ 2							100.0
193	AWC	801	⬆ 45	⬇ 1					100.0
194	GIMPS Asturias	794	⬆ 3						99.6	0.4
195	Weatopians	793	⬆ 3						99.7	0.3
196	Sæve Nordic Prime	781	⬆ 3						100.0
197	hreid	776	⬇ 14						100.0
198	ISISS Valle Seriana	758	⬆ 2	⬆ 4					99.9	0.1
199	Join Us 😈	708	⬆ 11	⬆ 4			100.0
200	SGDynamo Dresden	580	⬆ 4	⬆ 4			100.0
201	Arpan Sen Labs	544	⬆ 37	⬆ 29						100.0
202	PrimeObsession	539	⬆ 36	⬆ 3						100.0
203	London Computation Club	478	⬆ 10	⬆ 3						100.0
204	Team Dominik Radler	351	⬆ 4	⬆ 3	⬆ 1		100.0
205	/r/counting	337	⬆ 22	⬆ 4	⬆ 1
206	KnightLight	315	⬆ 9	⬆ 5	⬆ 1					99.3
207	Yurunago	276	⬆ 31	⬆ 23	⬆ 1					100.0
208	www.Adamek.biz	265	⬆ 10	⬆ 5	⬆ 1					100.0
209	Math Teachers of the World	259	⬆ 10	⬆ 7	⬆ 2				100.0
210	GIMPS Hams	253	⬆ 10	⬆ 7	⬆ 2			100.0
211	DividerHunt	221	⬆ 14	⬆ 8	⬆ 2		100.0
212	BrainStone	214	⬇ 49	⬇ 21	⬇ 8					100.0
213	Manri Costa Rica	213	⬇ 38	⬆ 7	⬆ 1					100.0
214	30thousandwon	193	⬆ 10	⬆ 9	⬆ 1					100.0
215	Team Bulgaria	190	⬇ 10	⬇ 5	⬆ 1						99.9
216	miiro	150	⬆ 22	⬆ 14	⬆ 1		100.0
217	GIMPS.Peace	122	⬆ 13	⬆ 7	⬆ 1		44.7	55.3
218	TeamUbuntu	121	⬆ 11	⬆ 7	⬆ 1					100.0
219	sannerud.com	108	⬆ 16	⬆ 10	⬆ 1		43.1				19.4	37.5
220	FourthFloorFourEyes	31	⬆ 12	⬆ 7	⬆ 1		100.0
221	PROMYS	23	⬆ 13	⬆ 7	⬆ 2						100.0
222	PARG team	21	⬆ 16	⬆ 8	⬆ 2						100.0
223	TeamEc	18	⬇ 16	⬆ 3	⬇ 1						100.0
224	Unteranger Primelurche	6	⬇ 18	⬇ 12	⬇ 14					98.4
225	yfinder	1	⬇ 2	⬇ 4						100.0