Question

explain why
$7 \times 11 \times 13 \times 1 \times 2 \times 3 + 11$
is a composite number ​

Answer 1

$\large{\underline{\boxed{ Answer}}}$

Composite number :- Those numbers which has more than two prime factors is called composite number.

Ex :- 4 , 25 , 26 etc.

4 is the smallest composite number.

$= > 7 \times 11 \times 13 \times 1 \times 2 \times 3 + 11$

Take 11 as common,

$11(7 \times 13 \times 1 \times 2 \times 3 + 1)$

$= > 11 \times 547$

we can see it has more than two factors hence, it is a composite number.