三个数怎么找公倍数

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select * from tbl_Articles WHERE ArticleID=384035 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=384035 LIMIT 0,1
select * from tbl_Articles_sphinx where id=384035 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(3415785,443301,426548,501899,478082,1148909,442032,447421,100645,363309,397810,209362,790864,392559,463515,471980,520349,474880,413937,505421,1087824,504021,396988,493079,363841,372826,424214,1179734,472827,520547) ORDER BY field (ArticleID,3415785,443301,426548,501899,478082,1148909,442032,447421,100645,363309,397810,209362,790864,392559,463515,471980,520349,474880,413937,505421,1087824,504021,396988,493079,363841,372826,424214,1179734,472827,520547)