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ESL forum > Ask for help > Math    

Math



m.mona
Egypt

Math
 
in mathematics what is the meaning of  ( L.C.M ) AND ( H.C.F )

3 Jan 2013      





mvblair
United States

LCM is "least common multiple," which is similar to "least common denominator." It is the smallest whole number that can divide two other numbers. 

HCF is "highest common factor," which is usually called (in America, at least) "greatest common divisor." It is the largest whole number that can divide two other numbers.

3 Jan 2013     



yanogator
United States

mvblair may have made a little mistake in writing the answer. The LCM is the smallest whole number that the two given numbers can evenly divide, not that can divide the two numbers.
 
THe LCM of  12  and 15  is 60, because they will both go into 60 evenly, but not into any smaller number.
 
Bruce

3 Jan 2013     



mvblair
United States

Bruce is definitely correct!! Embarrassed

3 Jan 2013