Question

state whether 7X11X13+7 is composite or prime no.

Answer 1

$hey user. 7 \times 11 \times 13 + 7 \\ = \geqslant 77 \times 13 + 7 \\ = \geqslant 1001 + 7 \\ = \geqslant 1008 \\ \: \: \: hey \: it \: is \: a \: composite \: number \\ \: \: \: \: | \leqslant < regards \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: akshat \: rajput \geqslant > \\ follow \: me|$

Answer 2

$7 \times 11 \times 13 + 7 \\ \\ 7(11 \times 13 + 1) \\ \\ 7(143 + 1) \\ \\ 7 \times 144 \\ \\ 7 \times 22222 \times 33$
It is a composite number