Henri & Renaud Lifchitz's PRP Top records

What is a PRP ?

A PRP is a probable prime number, a number that nobody knows how to prove or disprove its primality.
Here are some criterions that can be used to recognize these numbers :

- N does not have any prime factor up to 2^32.
- N cannot be trivially written into a product.
- Take 3 square-free consecutive bases such that (b1/N)=(b2/N)=(b3/N)= -1. N should be such that b1^((N-1)/2)=b2^((N-1)/2)=b3^((N-1)/2)= -1 (mod N).
- Take a prime base such that (b/N)= -1 and b<>b1<>b2<>b3. N should pass the strong test in base b.
- or more (if someone has got an idea) !!!

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1-250	251-500	501-750	751-1000	1001-1250	1251-1500	1501-1750	1751-2000
2001-2250	2251-2500	2501-2750	2751-3000	3001-3250	3251-3500	3501-3750	3751-4000
4001-4250	4251-4500	4501-4750	4751-5000	5001-5250	5251-5500	5501-5750	5751-6000
6001-6250	6251-6500	6501-6750	6751-7000	7001-7250	7251-7500	7501-7750	7751-8000
8001-8250	8251-8500	8501-8750	8751-9000	9001-9250	9251-9500	9501-9750	9751-10000

Rank	Probable prime	Digits (> 50000)	Who ?	When ?
1501	2^495337-1847293	149112	Enzo Doria	07/2015
1502	(2^495193-7)/5	149068	Lelio R Paula	10/2015
1503	413^56963-412^56963	149013	Jean-Louis Charton	08/2012
1504	47^89113-46^89113	149006	Robert Price	10/2012
1505	2^494916+87855	148985	Lelio R Paula	01/2016
1506	2^494586-2791991	148886	Enzo Doria	02/2016
1507	8*10^148860-3	148861	Ray Chandler	04/2011
1508	2^494333-286183	148810	Enzo Doria	06/2015
1509	2^494144-264119	148753	Enzo Doria	05/2014
1510	(5*2^493838-1)/3721	148658	Lelio R Paula	10/2015
1511	(23*2^493761-1)/555	148636	Lelio R Paula	10/2015
1512	2^493636+82081	148600	Enzo Doria	09/2016
1513	((((((((((((((34251^2-2)^2-2)^2-2)^2-2)^2-2)^2-2)^2-2)^2-2)^2-2)^2-2)^2-2)^2-2)^2-2)^2-2)^2-2	148593	Serge Batalov	07/2016
1514	177487#+(519643#)/(177487#)	148558	Makoto Morimoto	11/2017
1515	(2*10^148460-23)/3	148460	Robert Price	04/2018
1516	(8*10^148328+1)/9	148328	Serge Batalov	05/2010
1517	5^211959-12874	148153	Enzo Doria	05/2014
1518	187^65175-2	148068	Lelio R Paula	11/2017
1519	2^491851+1871453	148062	Enzo Doria	05/2016
1520	2^491521-1865323	147963	Enzo Doria	02/2016
1521	(2^491476+7)/71	147948	Lelio R Paula	10/2015
1522	2^491391-7807	147924	Lelio R Paula	01/2013
1523	2^491370-113297	147918	Enzo Doria	07/2014
1524	(32760^32760+32759^32759)/95546586737133567708319	147900	Robert Price	07/2016
1525	2^490660-17	147704	Lelio R Paula	12/2017
1526	2^490550+1179439	147671	Enzo Doria	06/2016
1527	(23*10^147649-59)/9	147650	Robert Price	05/2018
1528	2^490303+2793653	147596	Enzo Doria	03/2016
1529	199^64181-2	147543	Lelio R Paula	11/2017
1530	2^489871-286987	147466	Enzo Doria	07/2015
1531	2^489864-351899	147464	Enzo Doria	07/2015
1532	175^65724-2	147422	Lelio R Paula	11/2017
1533	2^489712+1874851	147419	Enzo Doria	06/2016
1534	63^81896-2	147359	Lelio R Paula	10/2017
1535	(11*10^147313-107)/3	147314	Robert Price	09/2018
1536	2^489305-59815	147296	Enzo Doria	10/2015
1537	(2^489280-7)/6381	147285	Lelio R Paula	09/2015
1538	2^489125+80357	147242	Enzo Doria	06/2016
1539	2^488648-112799	147098	Enzo Doria	07/2014
1540	2^488627-350317	147092	Enzo Doria	06/2015
1541	(2^488441-1)/(61543567*30051203516986199)	147012	Dario Alpern	12/2014
1542	2^488280-2165	146987	Yves Minet	07/2014
1543	2^488278+45	146987	Lelio R Paula	12/2017
1544	2^487927-39	146881	Lelio R Paula	12/2017
1545	(7*10^146860-13)/3	146861	Robert Price	07/2018
1546	2^487726-1863341	146821	Enzo Doria	12/2015
1547	2^487121-39523	146639	Enzo Doria	09/2015
1548	(7*2^486967+1)/39	146591	Lelio R Paula	09/2015
1549	2^486893-79	146570	Yves Minet	09/2017
1550	2^486840+1879141	146554	Enzo Doria	08/2016
1551	2^486774-87	146534	Lelio R Paula	12/2017
1552	96^73877-95^73877	146445	Robert Price	10/2015
1553	(52^85259+1)/53	146304	Paul Bourdelais	09/2017
1554	179^64935+2	146290	Lelio R Paula	10/2017
1555	2^485531-114621	146160	Enzo Doria	05/2015
1556	(2^485461-9)/4249	146135	Lelio R Paula	09/2015
1557	2^485389+81887	146117	Enzo Doria	08/2016
1558	(10^146063+71)/9	146063	Serge Batalov	07/2015
1559	(2^485119+7)/2745	146032	Lelio R Paula	09/2015
1560	(22*10^146029+257)/9	146030	Robert Price	06/2018
1561	2^484743+1872923	145923	Enzo Doria	05/2016
1562	2^484341+1879157	145802	Enzo Doria	08/2016
1563	2^484271-51	145781	Lelio R Paula	11/2017
1564	70^78989-69^78989	145743	Robert Price	01/2014
1565	51^85334+2	145714	Robert Price	07/2015
1566	2^483886-1857101	145665	Enzo Doria	10/2015
1567	2^483563-1863457	145567	Enzo Doria	12/2015
1568	2^483516-1861409	145553	Enzo Doria	11/2015
1569	2^483384-115019	145514	Enzo Doria	06/2015
1570	2^483302-3221	145489	Lelio R Paula	12/2012
1571	2^483046+1874029	145412	Enzo Doria	06/2016
1572	2^482991-2789317	145395	Enzo Doria	12/2015
1573	2^482978-2789711	145391	Enzo Doria	12/2015
1574	2^482966-2789711	145388	Enzo Doria	12/2015
1575	2^482817-1858843	145343	Enzo Doria	10/2015
1576	2^482751-113635	145323	Enzo Doria	08/2014
1577	2^482705-459763	145309	Enzo Doria	05/2015
1578	(4^241306+11)/3	145281	Robert Price	03/2017
1579	(19*2^482534+1)/7	145258	Lelio R Paula	09/2015
1580	53^84239-52^84239	145252	Robert Price	01/2013
1581	(2^482333+5)/9287	145193	Lelio R Paula	09/2015
1582	2^482087+72623	145123	Enzo Doria	04/2016
1583	2^482016-286565	145102	Enzo Doria	07/2015
1584	2^481840+15	145049	Robert Price	09/2015
1585	2^481801-481801	145037	Henri Lifchitz	03/2005
1586	2^481775+1869083	145029	Enzo Doria	05/2016
1587	29^99167+2	145022	Ray Chandler	08/2011
1588	2^481663+1875653	144996	Enzo Doria	07/2016
1589	2^481149-459073	144841	Enzo Doria	05/2015
1590	2^481045-113215	144809	Enzo Doria	07/2014
1591	2^480859-113695	144753	Enzo Doria	09/2014
1592	2^480766-2787191	144725	Enzo Doria	11/2015
1593	(21*27^101106-151)/26	144720	Curtis Bright	05/2015
1594	2^480678+1874239	144699	Enzo Doria	06/2016
1595	(8*10^144683+1)/9	144683	Serge Batalov	05/2010
1596	L(692147)	144651	Henri Lifchitz	10/2008
1597	2^480417+35	144620	Robert Price	11/2015
1598	2^480296-59879	144584	Enzo Doria	10/2015
1599	2^479844+3	144448	Donovan Johnson	06/2006
1600	(27*2^479642+1)/733	144386	Lelio R Paula	08/2015
1601	(21*2^479605-1)/11	144376	Lelio R Paula	09/2015
1602	2^479348-2792219	144299	Enzo Doria	02/2016
1603	3^302389-6242	144277	Enzo Doria	05/2014
1604	2*10^144220-3	144221	Robert Price	07/2015
1605	2^478904-109109	144165	Enzo Doria	04/2014
1606	2^478337-115333	143994	Enzo Doria	07/2015
1607	(7*2^478330-1)/3	143993	Lelio R Paula	08/2015
1608	88^74047-87^74047	143984	Robert Price	05/2015
1609	(19*10^143963+467)/9	143964	Robert Price	02/2018
1610	(71^77761+1)/72	143954	Paul Bourdelais	09/2017
1611	2^478088+27	143919	Robert Price	11/2015
1612	2^477475-22071	143735	Enzo Doria	07/2013
1613	2^477417-22123	143717	Enzo Doria	07/2013
1614	2^477359-3577	143700	Yves Minet	03/2017
1615	(14*10^143662-71)/3	143663	Robert Price	12/2018
1616	2^476936-396765	143573	Enzo Doria	07/2013
1617	2^476888-2791229	143558	Enzo Doria	01/2016
1618	2^476868-1859939	143552	Enzo Doria	11/2015
1619	2^476558-113627	143459	Enzo Doria	08/2014
1620	2^476478-45	143435	Lelio R Paula	11/2017
1621	(2^475854+9)/73	143245	Lelio R Paula	08/2015
1622	2^475813-113239	143234	Enzo Doria	07/2014
1623	2^475624-114059	143178	Enzo Doria	11/2014
1624	(11*2^475553-7)/15	143156	Renaud Lifchitz	03/2011
1625	2^475480-2786129	143134	Enzo Doria	10/2015
1626	(14*10^143097+73)/3	143098	Robert Price	12/2018
1627	2^475299-111937	143080	Enzo Doria	05/2014
1628	2^475160-2797859	143038	Enzo Doria	04/2016
1629	(2^475069+3)/395	143008	Lelio R Paula	08/2015
1630	2^475027-461437	142998	Enzo Doria	07/2015
1631	(2^474958+78557)/3	142977	Lelio R Paula	07/2015
1632	(8*10^142932+43)/3	142933	Robert Price	06/2018
1633	(54^82471-1)/53	142871	Paul Bourdelais	09/2017
1634	(11*2^474432-1)/95	142818	Lelio R Paula	09/2015
1635	2^474417-59923	142814	Enzo Doria	10/2015
1636	4*10^142810-21	142811	Robert Price	09/2018
1637	(3*2^474166+1)/7	142738	Lelio R Paula	08/2015
1638	2^474053+2897	142705	Lelio R Paula	08/2012
1639	(10^142699+359)/9	142699	Serge Batalov	12/2014
1640	898^48311-897^48311	142676	Jean-Louis Charton	12/2012
1641	2^473740-1856639	142610	Enzo Doria	09/2015
1642	2^473617-114223	142573	Enzo Doria	12/2014
1643	2^473257+1873217	142465	Enzo Doria	06/2016
1644	(19*2^473242+1)/11	142461	Lelio R Paula	09/2015
1645	(14*10^142440+61)/3	142441	Robert Price	12/2018
1646	(10^142425+359)/9	142425	Serge Batalov	12/2014
1647	2^473101+773027	142418	Enzo Doria	05/2016
1648	(13*2^472838-1)/3	142340	Lelio R Paula	09/2015
1649	(17*2^472789-1)/187347	142320	Lelio R Paula	09/2015
1650	2^472634-109511	142278	Enzo Doria	04/2014
1651	(48^84589+1)/49	142213	Robert Price	01/2014
1652	2^472258+7	142164	Lelio R Paula	08/2015
1653	tau(317^10330)	142098	Nik Lygeros / Olivier Rozier / LR team	10/2013
1654	(11*2^471913-1)/21	142060	Lelio R Paula	09/2015
1655	2^471792+1880881	142024	Enzo Doria	11/2016
1656	(31*2^471580-1)/135	141960	Lelio R Paula	08/2015
1657	(4*10^141926-79)/3	141927	Robert Price	02/2018
1658	(904*19^110984-1)/3	141924	Curtis Bright	05/2015
1659	(14*10^141853+37)/3	141854	Robert Price	12/2018
1660	(41*10^141836-59)/9	141837	Robert Price	10/2018
1661	4*5^202913-9	141831	Lelio R Paula	04/2015
1662	2*7^167812-3	141818	Lelio R Paula	12/2014
1663	2^471043+35	141799	Robert Price	11/2015
1664	(11*2^470956-1)/7945	141770	Lelio R Paula	08/2015
1665	(11*10^141718-131)/3	141719	Robert Price	09/2018
1666	2^470692+76771	141693	Enzo Doria	05/2016
1667	(21*2^470391+1)/533	141601	Lelio R Paula	09/2015
1668	2^470305-459373	141576	Enzo Doria	05/2015
1669	2^470183+72623	141540	Enzo Doria	04/2016
1670	2^470173-16465	141537	Enzo Doria	04/2013
1671	2^469974-1841	141477	Enzo Doria	05/2014
1672	(23*2^469939+1)/25	141466	Lelio R Paula	08/2015
1673	2*10^141448+63	141449	Robert Price	05/2018
1674	2^469824+43	141432	Lelio R Paula	09/2017
1675	2*10^141407-27	141408	Robert Price	05/2018
1676	2^469630-59711	141373	Enzo Doria	10/2015
1677	(25*10^141366-331)/9	141367	Robert Price	08/2018
1678	(2^469564-3)/611	141351	Lelio R Paula	08/2015
1679	197^61601+2	141342	Lelio R Paula	08/2017
1680	2^469372-112949	141296	Enzo Doria	07/2014
1681	143^(2^16)+106^(2^16)	141253	Valeryi Kuryshev	02/2011
1682	143^65536+106^65536	141253	Serge Batalov	03/2018
1683	2^469198+782569	141243	Enzo Doria	10/2016
1684	2^469076-2786939	141206	Enzo Doria	11/2015
1685	2^468804+1874941	141125	Enzo Doria	06/2016
1686	2^468787+81353	141119	Enzo Doria	08/2016
1687	2^468595-350407	141062	Enzo Doria	06/2015
1688	2^468564+87855	141052	Lelio R Paula	01/2016
1689	2^468551-21987	141048	Enzo Doria	07/2013
1690	2^468523-7	141040	Lelio R Paula	08/2015
1691	2^468405+87855	141004	Lelio R Paula	01/2016
1692	2^467978-113051	140876	Enzo Doria	07/2014
1693	2^467780-344429	140816	Enzo Doria	07/2015
1694	2^467605-1855603	140764	Enzo Doria	09/2015
1695	5*10^140744-7	140745	Robert Price	09/2015
1696	(5^201359-1)/4	140744	Paul Bourdelais	12/2008
1697	2^467401-1850023	140702	Enzo Doria	08/2015
1698	(2^467270+78557)/23247	140658	Lelio R Paula	07/2015
1699	(29*2^467205+1)/2780517107	140635	Lelio R Paula	08/2015
1700	2^467166-1854941	140631	Enzo Doria	09/2015
1701	2^466866-1840571	140541	Enzo Doria	06/2015
1702	2^466829-459523	140530	Enzo Doria	05/2015
1703	2^466692-113213	140489	Enzo Doria	07/2014
1704	(44*10^140410-503)/9	140411	Robert Price	12/2018
1705	153^64265-2	140400	Lelio R Paula	11/2017
1706	(112*10^140357-1)/3	140359	Serge Batalov	12/2014
1707	2^466181-112735	140335	Enzo Doria	07/2014
1708	(5*10^140281-119)/3	140282	Robert Price	03/2018
1709	(27*2^465872+1)/691	140241	Lelio R Paula	08/2015
1710	2^465803-114817	140221	Enzo Doria	05/2015
1711	floor(Pi*10^140344)%10^140165	140165	Serge Batalov	08/2012
1712	2^465503-112735	140131	Enzo Doria	07/2014
1713	6^179964+179964^6-1	140040	Robert Price	04/2014
1714	(29*2^465077-1)/9	140003	Lelio R Paula	08/2015
1715	2^465072-344789	140001	Enzo Doria	07/2015
1716	2^464864-17	139939	Lelio R Paula	09/2017
1717	(17^113621+1)/18	139804	Paul Bourdelais	09/2011
1718	(13*10^139782+191)/3	139783	Robert Price	11/2018
1719	(19*2^464312-1)/3	139773	Lelio R Paula	08/2015
1720	3*10^139722+13	139723	Robert Price	07/2018
1721	(31*2^463970+1)/5	139670	Lelio R Paula	08/2015
1722	(18203^(2^15)+(18201)^(2^15))/2	139597	Robert Price	05/2018
1723	2^463633-2788423	139568	Enzo Doria	11/2015
1724	2^463271-109501	139459	Enzo Doria	04/2014
1725	(5*10^139457+79)/3	139458	Robert Price	03/2018
1726	2^463237-99	139449	Lelio R Paula	09/2017
1727	(7*10^139417-547)/9	139417	Robert Price	01/2018
1728	(10^139398+191)/3	139398	Robert Price	02/2018
1729	2^463019+79463	139383	Enzo Doria	06/2016
1730	3^292129-112756	139381	Enzo Doria	07/2014
1731	(15*2^462951+1)/527	139361	Lelio R Paula	08/2015
1732	2^462855-1865707	139334	Enzo Doria	02/2016
1733	2^462786-292043	139313	Enzo Doria	08/2015
1734	(26*10^139289+1)/9	139290	Serge Batalov	05/2010
1735	(17*10^139239+67)/3	139240	Robert Price	01/2019
1736	2^462238-935	139148	Yves Minet	02/2014
1737	2^461228+1870441	138844	Enzo Doria	05/2016
1738	2^461204-113675	138837	Enzo Doria	08/2014
1739	(2^461139-7)/47	138815	Lelio R Paula	08/2015
1740	(17*10^138812-521)/9	138813	Robert Price	04/2018
1741	3*10^138811-11	138812	Robert Price	07/2018
1742	(17*2^460963+1)/124051613	138757	Lelio R Paula	08/2015
1743	(43*10^138648+101)/9	138649	Robert Price	11/2018
1744	2^460567-113541	138645	Enzo Doria	08/2014
1745	7*10^138604+3	138605	Robert Price	08/2015
1746	2^460330+69	138574	Lelio R Paula	09/2017
1747	2^460078-69581	138498	Enzo Doria	12/2015
1748	2^459768+1531	138404	Lelio R Paula	06/2012
1749	2^459343-113611	138277	Enzo Doria	08/2014
1750	2^459199+1874393	138233	Enzo Doria	06/2016

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Probable Primes Top 10000

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