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explain why 7×11×13+13and7×6×5×4×3×2×1+5are composite number |
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Answer» A composite number is a positive integer that has a factor other than 1 and itself.1) 7×11×13+13=13[(7*11)+1]=13(77+1)=13(78)Thus 13 and 78 is also a factor hence it a composite number2) 7×6×5×4×3×2×1+5 = 5[(7*6*4*3*2)+1]=5(1008+1)=5(1009)Thus 5 and 1009 are factors of above numberThus the both numbers are compositeLike if you find it useful |
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