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Explain why 7×6×5×4×3×2×1+5 and 7×11×13+13 are composite numbers |
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Answer» 7×11×13+13=13(7×11+1)It has a factor 13 other than 1 and n( n=any integer)7×6×5×4×3×2×1+5=5(7×6×4×3×2×1+1)It has a factor 5 other than 1 and n(n=any integer)The numbers with 3 or more factors are composite numbers.Therefore,these 2 numbers are composite numbers So the are composite no. Both have more than two factor... It is very easy just know as about composite number and do an example related to this and you can easily solve this question Take 5(7×6×1×4×3×2×1)+1Take 13 (7×11×1)+1 |
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