1是质数吗

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select * from tbl_Articles WHERE ArticleID=3261884 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=3261884 LIMIT 0,1
select * from tbl_Articles_sphinx where id=3261884 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(496813,2035051,666289,3239545,1014668,1122701,702765,2667989,1117866,1481978,3477848,86166,891517,1089239,436362,2684844,1098497,904370,2966672,587283,2038444,1092303,3136381,2956675,658054,627995,100695,86028,2589579,1088563) ORDER BY field (ArticleID,496813,2035051,666289,3239545,1014668,1122701,702765,2667989,1117866,1481978,3477848,86166,891517,1089239,436362,2684844,1098497,904370,2966672,587283,2038444,1092303,3136381,2956675,658054,627995,100695,86028,2589579,1088563)