Question

Explain why 7 x 11 x 13+13 and 7 x6x5 x 4x3x2x1 +5 are composite numbers​. and. hi. add me a s friend

Answer 1

Answer:

composite number

Step-by-step explanation:

7×11×13+13

=13(7×11+1)

=13×(77+1)

=13×78

=13×13×3×2

Since it has more than two factors(13,3,2,1,13×78 I.e. 1014).

It is a composite number