1.HCF OF 7140,90 AND 63 2.LCM OF 48,72 AND 108 3.All _______ of a number divides that number excactly who ever answers first is marked as brainliest and who ever answers second gets a thank you
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HCF of (7140,90&63):
7140=2²x3x5x7x17
90=2x3²x5
63=3²x7
therefore, HCF is the common factor with the lowest power
therefore, HCF=3
whereas, LCM is the multiplication of common factor with the greatest power and other uncommon factors
therefore, LCM=3²x2²x5x7x17
therefore, LCM=21420
All factors of a number divides that number exactly.
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