Question

Explain why 5x11x13x3+5 is a composite number. Give proper reason for the answer.

Answer 1

Answer:

I think you can understand by this answer

Step-by-step explanation:

Given 7×11×13+13

=13×(7×11+1)=3×78 

This number is multiple of two integers.Hence it has more than two factors.Hence it is a composite number.

similarly in

7×6×5×4×3 ×2×1+5   

=5(7×6×4×3 ×2×1+1)=5×1009   

This number is multiple of two integers.Hence it has more than two factors.Hence it is a composite number.