最小公倍数和最大公因数是什么？

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select * from tbl_Articles WHERE ArticleID=1023691 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=1023691 LIMIT 0,1
select * from tbl_Articles_sphinx where id=1023691 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(364060,1083287,1099419,86259,1120364,3420073,1098875,100721,1114820,379518,101180,2649053,365532,1109683,369976,2384127,1093927,374711,376462,1098497,1104739,1090613,1118142,2804498,1382498,589661,376211,1095414,1113746,359864) ORDER BY field (ArticleID,364060,1083287,1099419,86259,1120364,3420073,1098875,100721,1114820,379518,101180,2649053,365532,1109683,369976,2384127,1093927,374711,376462,1098497,1104739,1090613,1118142,2804498,1382498,589661,376211,1095414,1113746,359864)