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 2026-05-25 14:00 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	702986124	⬆ 1	⬆ 1	⬆ 1		0.1	98.9	0.1		0.9
2	GIMPS.Russia	675878613	⬇ 1	⬇ 1	⬇ 1		0.3		0.1		99.7
3	POLAND	131184970					0.8	96.2	0.4	0.1	2.5
4	Ars Technica Team Prime Rib	128606123	⬆ 2	⬆ 2				99.1		0.8
5	PrimeNet	122283544	⬇ 1				0.2	98.1	0.7	1.0
6	-Too many Ones-	54430861	⬇ 1	⬇ 2			0.1	72.3			27.6
7	GIMPSChina	21657800	⬆ 1	⬆ 1			65.5	21.2	4.2	0.5	8.5
8	szerverem.hu	15032952	⬆ 7	⬆ 5			2.8	23.9	67.5	2.7	3.0
9	GW's legions	13657374	⬆ 2	⬆ 1	⬆ 1			0.8	36.4	1.6	61.1
10	UCM-curtisc	11707005	⬆ 2	⬆ 2	⬆ 2				99.3	0.7
11	Team-Deutschland	11536031	⬆ 2				2.7	52.1	0.7	0.1	44.3
12	More Power!!!	10832594	⬇ 2	⬆ 2	⬆ 1		17.1	70.4	2.6	2.0	7.9
13	One Man Team	8737138	⬇ 4	⬇ 4	⬇ 4			99.2	0.8
14	TeamUK	7147451		⬆ 1	⬆ 1		49.1	2.8	19.0	1.5	27.6	0.1
15	Porta Kruse	6395213	⬆ 1	⬆ 1	⬆ 1		2.0	0.5			91.2	6.1
16	GPU to 72	4712023	⬆ 1	⬆ 1	⬆ 1		51.2	27.7	0.4	4.0	16.4
17	Numberphile	3919859	⬆ 2	⬆ 1	⬆ 1		15.5	33.4	16.2	4.5	30.2
18	UW Eau Claire	3095348	⬆ 10	⬆ 2	⬆ 1		89.5		7.6	2.8
19	tsc	2830760	⬆ 1		⬆ 1		70.7	3.7	1.1	0.4	24.1
20	Argentina	2366506	⬆ 206	⬆ 6	⬆ 1		92.6		7.4
21	UKRAINE	2321838		⬆ 1	⬆ 1		15.7	8.7	62.6	13.0
22	SpongeBob SquarePants	2057614	⬇ 4	⬇ 1	⬆ 1			30.5	59.0	10.5
23	Wikipedia	1968175			⬆ 1		58.4	33.8	4.7	2.1	0.8
24	Swedes Of Primes	1237666		⬆ 4	⬆ 1		0.5	79.7	16.9	2.9
25	GIMPS.Occitania	1204166	⬆ 2	⬆ 4	⬆ 2			4.4				95.6
26	GIMPS.Korea	1123143	⬆ 6	⬆ 4	⬆ 2		88.5	4.9	4.4	0.9	1.2
27	Dutch Power Cows	1076877	⬇ 5	⬇ 3	⬇ 1		43.8	15.5	2.1	2.4	36.3
28	MBAi.Cloud	836210	⬆ 2	⬆ 3	⬆ 2				99.9	0.1
29	unRAID	589125	⬇ 22	⬇ 22	⬇ 15			82.3	16.1	1.2	0.4
30	MATHSareREAL	578886	⬆ 1	⬆ 2	⬆ 1		96.2		2.5	1.3
31	citizenscience.ru	516729	⬆ 4	⬆ 2	⬆ 1		88.1	3.2	4.6	0.8	3.0	0.3
32	Buhr	476277	⬆ 4	⬆ 3	⬆ 1		54.5	4.4	17.6	5.5	18.0
33	GIMPS.Japan	434609	⬇ 7	⬇ 6	⬇ 4		21.1		28.3	8.2	42.3
34	Rechenkraft.net	401898	⬇ 1	⬆ 2			1.4	54.4	6.1	5.7	32.3
35	Terry Kim Team	383229	⬇ 1	⬆ 2	⬆ 1		96.0		3.0	0.7
36	MOXA	379247	⬇ 7	⬇ 2	⬇ 1		98.9		0.8	0.2
37	Colorado School of Mines	332586	⬆ 11	⬆ 2			92.6		6.1	1.3
38	S485122	305807	⬇ 1					95.0		5.0
39	404 - "Primes not Found"	266808	⬆ 7	⬆ 3	⬆ 1		82.5		17.3	0.2
40	Smoke-it	265516	⬇ 2		⬇ 1		90.5	7.1	1.8
41	nranks	238802	⬇ 1	⬆ 5			31.5	0.5	3.0	0.4	64.6
42	GIMPS.USA	236465	⬇ 17	⬇ 17			60.1	3.5	26.4	7.5	2.0
43	YahsTeam	231971	⬇ 4	⬇ 2			88.4		9.5	2.1
44	NerdyGirls	200638	⬇ 2	⬆ 1	⬆ 1	⬆ 1		42.3	7.3	50.4
45	GIMPS Team Philippines	200494	⬇ 4	⬇ 1	⬇ 1	⬇ 1	57.7		8.2	1.7	28.9
46	NanJing Tech	184125	⬆ 52	⬆ 5	⬆ 2		28.1		68.0	3.8
47	Canada	181854	⬇ 4		⬇ 1			2.2	69.4	28.3
48	Team Tartan	179929	⬇ 3		⬇ 1				76.9	23.1
49	OverclockerAustralia	151904	⬆ 1		⬆ 1		57.8		19.5	19.2
50	GIMPS.NZ	133115	⬆ 2		⬆ 1		79.6		10.6	9.8
51	Team China	126154		⬆ 2	⬆ 1				99.7	0.3
52	Unicamp	124714	⬆ 2		⬆ 1	⬆ 1	69.5		25.9	4.6
53	randomteam	121391	⬇ 9	⬇ 10	⬇ 4	⬇ 1					100.0
54	GIMPS.France	120430	⬆ 4	⬆ 2			9.3	66.6	4.7	7.8	11.5
55	SASAKI	104453		⬆ 2			100.0
56	GIMPS China	102239	⬇ 9	⬇ 2			90.0		5.0		4.6
57	IOTA	100573	⬆ 33	⬆ 7	⬆ 1		95.0		3.3	1.6
58	GIMPS.Portugal	99724	⬆ 51	⬆ 21	⬇ 1		43.2	52.1		4.7
59	BitMEX Research	92824	⬇ 10	⬇ 4					96.6	3.4
60	AMD Users	91555	⬆ 6	⬆ 1	⬆ 1		50.9	0.6	10.4	37.6	0.4
61	Wisconsin	89981	⬇ 4	⬇ 3	⬇ 1		42.2		30.5	27.3
62	UIUC	86744							69.5	30.5
63	Cap'n Entropy's Cavalcade of Wonderment	80360	⬇ 7	⬇ 4			73.1	6.8	17.8	2.3
64	Net-Work	77182	⬇ 3	⬆ 1			4.8	1.8			86.3
65	SHADO	75475	⬇ 5	⬇ 2		⬆ 1			60.2	19.7	12.0	1.8
66	Eratosthenes Sieve	74986	⬇ 3		⬆ 1	⬇ 1	0.7		95.4	3.8
67	Wile E. Coyote	73255	⬆ 9	⬆ 1	⬆ 1				75.8	0.4	23.7
68	EgyptianPolymaths	70856	⬇ 15	⬇ 8	⬇ 2			60.9			26.7
69	Esperanto	67019	⬇ 4	⬇ 2				26.3	4.8	68.8	0.2
70	AJ	65072	⬇ 1	⬇ 1					75.5	24.5
71	S147127	62453	⬆ 4	⬆ 1			29.9		18.1	51.9
72	ParadoxZ Commando	62204	⬇ 2	⬇ 1	⬆ 1				74.8	25.2
73	Team Israel	60487	⬇ 6		⬇ 1		96.9		2.6	0.4
74	Hungary	53361	⬇ 15		⬆ 1				4.5	1.9	93.3
75	Team_Italia	52722	⬇ 4	⬇ 5	⬇ 1		3.3		64.9	25.1	2.4	3.4
76	Brno University of Technology	48906	⬇ 4		⬆ 1			9.2	72.3	18.5
77	ComputerraRU	47882			⬇ 1		21.5		68.6	9.8
78	GIMPS.NEO	46782	⬇ 10	⬇ 3					78.1	21.9
79	VIPR	45448	⬆ 22	⬆ 9	⬆ 2		84.1		10.4	5.4
80	Team Belgium	42613	⬇ 7	⬇ 2	⬇ 1		1.3	5.5	29.8	20.2	43.3
81	Team Viet Nam	41552	⬇ 2	⬇ 1	⬇ 1		29.4		32.0	27.4	11.2
82	Turku	36285	⬆ 9	⬆ 2	⬆ 1				100.0
83	HardOCP	35916	⬆ 3	⬇ 2	⬇ 1				73.9	26.1
84	huskers-gimps	35914	⬆ 1	⬆ 2					74.5	25.5
85	Team H	35315	⬇ 4				12.8		86.7	0.5
86	Debian	33893	⬆ 1	⬇ 4					99.0	1.0
87	ᕙ(⇀‸↼‶)ᕗ	32337	⬆ 6	⬆ 2	⬆ 1		0.7		98.9	0.4
88	Hermessz	31076	⬇ 6	⬇ 1	⬇ 1		64.7		35.3
89	baraCUDA	29906	⬆ 137	⬆ 133	⬆ 1				100.0
90	Small-Team-2000	29675	⬇ 1		⬇ 1				10.6	89.4
91	socal_prime	27703	⬇ 3		⬆ 2				73.3	26.5	0.1
92	Channel 4	25750	⬆ 2	⬆ 1					80.5	19.5
93	MurrayInfoSys	25412	⬆ 9	⬆ 4	⬆ 4	⬆ 1			70.5	29.5
94	The Fellowship of Infinity	25380	⬆ 1	⬆ 1		⬇ 1			99.5	0.5
95	Costa Rica	23837	⬇ 3	⬆ 1	⬆ 1				75.2	24.4
96	MES-Team	23657	⬇ 13	⬇ 4	⬇ 1		74.2	6.4		19.4
97	LTT fans	22365	⬇ 23	⬇ 14	⬇ 6		37.5				62.5
98	Georgia Tech	20319	⬇ 34	⬆ 4					100.0
99	Team Retired	18926	⬇ 3			⬆ 1			29.0	11.2
100	A Single Engineer	18488	⬇ 1			⬇ 1			75.8	24.2
101	SpartaAlumni	18234	⬆ 2	⬆ 2					68.6	31.4
102	Aiblspitz	17847	⬆ 30	⬆ 8	⬆ 2		0.2	79.0	8.9	12.0
103	GIMPS Romania	17357	⬆ 43	⬆ 1	⬇ 1		74.1		22.9	3.0
104	PrimitiveRootsCircle	17033	⬇ 7	⬇ 3	⬇ 1		18.9		51.1	27.2	2.8
105	LimePrime	15012	⬇ 21	⬇ 7				9.4	78.4	12.2
106	Spain	14757	⬆ 5	⬇ 1	⬆ 4				69.2	30.8
107	NUST	14223	⬆ 9	⬆ 1			16.4	74.6	5.9	3.0
108	Com Systems (RU)	14208	⬆ 25	⬆ 8	⬆ 1				65.9	34.1
109	Ozzie Prime	13751	⬇ 3	⬇ 2	⬇ 1			3.1	40.1	15.7		41.0
110	moeses	13367	⬆ 3	⬆ 3	⬆ 1				99.1	0.8
111	Nerdfighters for Mersenne Primes	13188	⬇ 3	⬇ 2	⬆ 3				89.5	10.5
112	Quantus	12170	⬇ 5	⬆ 3	⬆ 3		10.0		13.0	25.1		51.9
113	Team Finland	12069	⬇ 35	⬇ 2	⬆ 3		1.0		96.8		2.2
114	TurkishMath	11994	⬆ 21	⬆ 13	⬆ 5				87.1	12.9
115	RobotechResearch	11805	⬆ 23	⬆ 7	⬆ 2				47.5	52.5
116	Team Slovenia	11648	⬇ 4	⬆ 1	⬇ 3				66.9	33.0
117	Portland State University	11319	⬇ 17	⬇ 5	⬇ 11			40.2	43.2	16.6
118	SETI.Germany	11194	⬇ 8	⬇ 12				8.5	14.2	77.4
119	FREE ROBUX	10852	⬆ 2		⬆ 1				100.0
120	Royal Military College of Canada	10691	⬆ 2		⬆ 1		89.7		7.9	2.4
121	Granada	10327	⬇ 2	⬆ 3	⬆ 1		27.0		22.9	49.4
122	Syntony	9855	⬆ 4	⬆ 4	⬆ 2	⬆ 2				100.0
123	Team Austria	9540	⬇ 43	⬇ 29	⬇ 11		79.9	2.2	17.9
124	GIMPS.Taiwan	9377	⬇ 10	⬆ 1	⬇ 1	⬇ 2			85.8	13.6	0.1
125	Team Norway	9316	⬇ 20	⬇ 11			79.0			5.5	15.3
126	Mensa	8910	⬇ 8	⬇ 5					88.2	11.8
127	Shaffer's Studio	8830	⬇ 2	⬆ 3					88.2	11.7
128	JiBoTeam	8715	⬆ 1	⬆ 1						100.0
129	Die Zeitfinder	8635	⬇ 1	⬇ 1	⬆ 2				91.0	9.0
130	University of Waterloo	8354	⬆ 9	⬆ 7	⬇ 1				100.0
131	Abacus	7927	⬇ 11	⬆ 1	⬆ 4				99.0	1.0
132	Triangle	7873	⬇ 2	⬆ 1	⬇ 2				98.9	1.1
133	math.auth.gr	7704	⬆ 53	⬆ 2	⬇ 1				100.0
134	Team Splunk	7605	⬆ 3	⬆ 2	⬇ 1			28.1	71.9
135	FreeBSD	7519	⬇ 11	⬇ 4	⬇ 1				73.6	26.4
136	Brasil	7033	⬆ 4	⬆ 4					78.1	21.8
137	Hyperion	6799	⬇ 20	⬇ 3						19.9
138	Prime Rib	6563	⬆ 3		⬆ 1				96.4	3.6
139	irowiki	6496	⬇ 3	⬆ 2	⬆ 1					100.0
140	FactorMania	6364	⬆ 16	⬆ 8	⬆ 2			58.7			41.3
141	Pavlicin	5948	⬆ 85	⬆ 81	⬆ 9		99.9	0.1
142	Team Christensen	5881	⬆ 3	⬆ 1	⬆ 1					100.0
143	México mágico	5795	⬆ 17	⬆ 13	⬆ 3				82.0	18.0
144	Elisabeth-von-Thadden-Schule	5505							42.1	57.9
145	Politeknik Banting, Selangor	5263	⬇ 30	⬇ 22	⬇ 7		79.6		15.0	5.4
146	KnightLight	5257	⬆ 62		⬇ 1					100.0
147	nmbarek_team	4951	⬆ 1	⬆ 2					99.8	0.2
148	teamMALI	4927	⬆ 2	⬆ 7					79.5	20.5
149	Crunching@EVGA	4888	⬆ 8	⬆ 1					99.7	0.3
150	Arpan Sen Labs	4825	⬆ 76	⬆ 15	⬆ 4				60.4	39.6
151	Korea.Prime	4699	⬆ 10	⬆ 10	⬆ 4	⬆ 1			66.9	33.1
152	Hong Kong GIMP	4694	⬇ 3	⬆ 1		⬆ 1			66.7	33.3
153	SU Prime Pirates	4435	⬇ 11	⬇ 11		⬆ 1			89.3	10.7
154	The_Dude_Abides	4046	⬇ 7		⬆ 2	⬆ 1	11.0			73.0
155	Noam Karni Team	3962	⬆ 4	⬆ 3	⬆ 3	⬆ 1			79.7	20.3
156	Phi Kappa Theta	3918	⬆ 8	⬆ 4	⬆ 4	⬆ 1			61.7	38.3
157	Olympic College	3828	⬇ 3			⬆ 1				100.0
158	Server66	3762	⬇ 27	⬇ 19	⬆ 1	⬆ 1	100.0
159	Furry Primes	3380	⬇ 25	⬇ 8	⬆ 3	⬆ 2	84.8			15.2
160	YESHUA IS THE MESSIAH	3370	⬆ 66	⬆ 18	⬆ 4	⬆ 2			99.2	0.8
161	zeit	3324	⬇ 10	⬇ 2	⬆ 2	⬆ 2	7.8			92.2
162	MES22-Team	3277	⬇ 39	⬇ 15	⬆ 3	⬆ 2	100.0
163	Morocco	3242	⬆ 26	⬆ 8	⬆ 6	⬆ 2			50.5	49.5
164	Kabylie	3113	⬇ 11	⬇ 1	⬆ 2	⬆ 2	15.2	2.4	50.0	32.4
165	Team_Brazil	2999	⬇ 2	⬇ 1	⬆ 2	⬆ 2	83.1	0.2		16.7
166	GIMPS.Hong Kong	2852	⬇ 8	⬇ 4	⬇ 5	⬇ 6	2.1		56.6	41.4
167	DePaul MAT 141	2546	⬆ 59	⬆ 55	⬆ 11	⬆ 9			99.7	0.3
168	Pi Rho	2499	⬇ 1	⬇ 2					67.1	32.9
169	GIMPSMalaysia	2394		⬇ 1	⬆ 1				66.8	33.2
170	VRS_SE	2364		⬇ 1	⬆ 2				66.7	33.3
171	GIMPS_KS	2199	⬆ 1	⬇ 1	⬆ 2				36.5	62.0	1.4
172	The Prime Pioneers	1919	⬇ 4	⬆ 2	⬆ 3	⬆ 1		100.0
173	The Pensis	1869	⬆ 2	⬆ 2	⬆ 4	⬆ 1				100.0
174	Danpi for GIMPS	1768	⬇ 22	⬇ 22	⬇ 23	⬇ 23	100.0
175	3DCenter.org	1749	⬇ 20	⬇ 8	⬆ 1						100.0
176	youngfun429	1719	⬇ 49	⬇ 31	⬇ 5	⬇ 4			45.4	54.6
177	San Francisco	1586	⬆ 5	⬆ 4	⬆ 3				100.0
178	hreid	1575	⬆ 17	⬆ 4	⬆ 3				100.0
179	cr_colorado	1549	⬆ 4	⬆ 4	⬆ 3					100.0
180	Obsidian	1542	⬇ 3	⬇ 3	⬆ 3					100.0
181	I Love Canadian Natural Resources	1514	⬇ 15	⬇ 8	⬇ 7					100.0
182	CZAsTc	1448	⬆ 3	⬆ 3	⬆ 2				99.5	0.5
183	WSU Cougars	1390	⬇ 40	⬇ 11	⬆ 2				55.3	44.6
184	Subprime Searches	1226	⬇ 11	⬇ 5	⬆ 3		79.1			20.9
185	GIMPS_IOM	1202	⬇ 6	⬇ 9	⬆ 1		100.0
186	Join Us 😈	1060	⬆ 13	⬆ 11	⬆ 2		66.8			33.2
187	TunisianTeam	1031	⬇ 22	⬇ 1	⬆ 2				75.0	25.0
188	Therian Primes	1007	⬆ 12	⬇ 1	⬆ 2			14.6		52.4	33.0
189	MadPoo	999	⬇ 85	⬇ 71	⬇ 48					100.0
190	Czech National Team	903	⬆ 15	⬇ 1	⬆ 1		4.1		91.8	0.8	2.0
191	TimE4This	876	⬇ 7	⬇ 1	⬆ 1					100.0
192	RafaÅ‚ HacuÅ›	860	⬆ 34	⬆ 30	⬆ 32	⬆ 32			100.0
193	AWC	801	⬇ 2	⬇ 2		⬇ 1			100.0
194	F=dp/dt	800	⬇ 18	⬇ 14	⬇ 15	⬇ 1			99.3	0.7
195	GIMPS Asturias	794	⬇ 3	⬇ 3	⬇ 1	⬇ 1			99.6	0.4
196	Weatopians	793	⬇ 3	⬇ 3	⬇ 1	⬇ 1			99.7	0.3
197	Zorin OS Crew	686	⬇ 19	⬇ 13		⬇ 1				100.0
198	His Dark Materials	672	⬇ 18	⬇ 10	⬇ 2	⬇ 1				32.4	67.4
199	SGDynamo Dresden	580	⬆ 2	⬇ 1	⬇ 1	⬇ 1	100.0
200	PrimeObsession	539	⬆ 2		⬇ 1	⬇ 1				100.0
201	GIMPS.Romania	422	⬆ 25	⬆ 21	⬇ 1	⬇ 1			100.0
202	alan145	390	⬇ 14	⬇ 3		⬇ 1	100.0
203	Optimists Prime	365	⬇ 29	⬇ 7	⬇ 2	⬇ 1		100.0
204	PARG team	298	⬆ 22	⬆ 15	⬇ 1	⬇ 1				92.8	7.2
205	Yurunago	276	⬆ 4	⬇ 2		⬇ 1				100.0
206	Team Dominik Radler	275		⬇ 4	⬇ 2	⬇ 1	100.0
207	Vegan	275	⬆ 19	⬇ 3	⬇ 1	⬇ 1				100.0
208	Byberg Nordic Prime	265	⬇ 14	⬇ 3	⬇ 1	⬇ 1				100.0
209	FDY	265	⬆ 17	⬆ 13	⬇ 1	⬇ 1				100.0
210	www.Adamek.biz	265		⬇ 4	⬇ 1	⬇ 1				100.0
211	Math Teachers of the World	259	⬆ 1	⬇ 4	⬇ 1	⬇ 1			100.0
212	GIMPS Hams	253	⬆ 1	⬇ 4	⬇ 1	⬇ 1		100.0
213	DividerHunt	221	⬆ 2	⬇ 4	⬇ 1	⬇ 1	100.0
214	Manri Costa Rica	213	⬆ 2	⬇ 4	⬇ 1	⬇ 1				100.0
215	30thousandwon	193	⬆ 3	⬇ 4	⬇ 1	⬇ 1				100.0
216	/r/counting	184	⬇ 9	⬇ 4	⬇ 1	⬇ 1
217	miiro	150	⬆ 2	⬇ 4	⬇ 1	⬇ 1	100.0
218	GIMPS.Peace	122	⬆ 2	⬇ 3	⬇ 1	⬇ 1	44.7	55.3
219	TeamUbuntu	121	⬆ 2	⬇ 3	⬇ 1	⬇ 1				100.0
220	sannerud.com	108	⬆ 5	⬇ 3		⬇ 1	43.1				19.4	37.5
221	Team Bulgaria	103	⬇ 7	⬇ 7	⬇ 2	⬇ 1					100.0
222	PROMYS	23	⬆ 2	⬇ 4	⬇ 1	⬇ 1					100.0
223	yfinder	1	⬇ 6	⬇ 2		⬇ 1				100.0
224	ANDY	0	⬇ 43	⬇ 4	⬇ 2	⬇ 1