如何快速的求三个数的最小公倍数

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select * from tbl_Articles WHERE ArticleID=1834117 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=1834117 LIMIT 0,1
select * from tbl_Articles_sphinx where id=1834117 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1100515,1091404,1060755,1082203,1102172,1073568,1086498,1091950,1090541,1070824,1093154,1091625,1126128,1085390,1054610,1095928,1097815,1059338,1102630,1032968,1104717,1115755,1066090,1071972,1050395,1110586,1103841,1108229,1081881,1100849) ORDER BY field (ArticleID,1100515,1091404,1060755,1082203,1102172,1073568,1086498,1091950,1090541,1070824,1093154,1091625,1126128,1085390,1054610,1095928,1097815,1059338,1102630,1032968,1104717,1115755,1066090,1071972,1050395,1110586,1103841,1108229,1081881,1100849)