Question

explain why 7×11×13+13 and 7×6×5×4×3×2×1+5 are composite numbers ​

Answer 1

7×11×13+13 and 7×6×5×4×3×2×1+5 are composite numbers as they have factors more than two that is 13 and 5 .

Answer 2

Hey!

➡7×11×13+13

13(7×11×1+1)

➡7×6×5×4×3×2×1+5

5(7×6×1×4×3×2×1+1)

These numbers have more than two (2) factors.

We know, Numbers which have more than two factors are composite numbers.

Hope this helps ✌✌