Question

27. Check whether 2 x 3 x 5 x 7 x 11 + 5* 7 * 11 is a
composite number? What is the difference between
prime numbers and composite numbers ?​

Answer 1

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.