Question

Explain 7X11X13+13 and 7 x 6 x 5 x 4 x 3 x 2x 1 +5 are
Composite number why?​

Answer 1

Case 1 :-

☯️ 7 × 11 × 13 + 13 = 13(7 × 11 × 1 + 1)

=13 × (77 + 1)

= 13 × 78

Case 2 :-

☯️7 × 6 × 5 × 4 × 3 × 2 × 1 + 5

= 5( 7×6×1×4×3×2×1+1)

= 5 ( 1008 + 1)

= 5 × 1009

Here both are multiplied by two numbers .....

So, there are " Composite Numbers " ...

I hope it helps you.....