Explain why 7 11 13 + 13 and 7 6 5 4 3 2 1 + 5 are compositenumbers
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Answer:
7×11×13+13 =13(7×11+1)=13×78
therefore since it can be expressed as product of two numbers they are composite numbers.
7×6×5×4×3×2×1+5= 5(7×6×1×4×3×2×1+1) =5×1009
therefore since it can be expressed as product of two numbers, they are composite numbers.
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