Question

explain weather the following numbers are prime or composite numbers 1. 1x11x13+11

Answer 1

Hey friend, ☺ here is ur answer ____________________________

1 × 11 × 13 + 11
taking 11 as common , we get
11 ( 1× 13 + 1)
= 11 × 14
= 11 × 2 × 7 × 1

As we know , prime numbers always have 2 factors ,for eg , 2 = 2 × 1 but composite numbers have more than two factors .
Therefore it is a composite number.

hope this helps u..