Explain why 7×11×13+13 and 7×6×5×4×3×2×1+5are composite no.

1.	Explain why 7×11×13+13 and 7×6×5×4×3×2×1+5are composite no.
Answer» We have,7×11×13+13 =13(7×11×1+1)=13×78=13×3×2×13Hence, it is a composite number .We have,7×6×5×4×3×2×1+5 =5(7×6×4×3×2×1+1)=5(1008+1)=5×1009Hence, it is a composite number . 71113+13Let\'s take common 13(7111+1) *1 More then two factors then it is composite no. I HOPE YOU WILL DO SECOND QUESTION SELF Plz slove this

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