用短除法求最大公因数和最小公倍数怎么求?

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select * from tbl_Articles WHERE ArticleID=578606 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=578606 LIMIT 0,1
select * from tbl_Articles_sphinx where id=578606 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(421559,100480,458469,426985,542158,1114708,425711,504701,100695,644214,1103010,513591,459340,611786,531560,532975,608431,487941,499036,670335,1207856,365224,1105303,573286,493443,86228,1094807,515035,100668,477835) ORDER BY field (ArticleID,421559,100480,458469,426985,542158,1114708,425711,504701,100695,644214,1103010,513591,459340,611786,531560,532975,608431,487941,499036,670335,1207856,365224,1105303,573286,493443,86228,1094807,515035,100668,477835)