Question

Is 7×6×5×4×3×2×1+7 a composite number?justify your answer.

Answer 1

Step-by-step explanation:

yes, it is

7×6×5×4×3×2×1+7=5047

and as 5047 is divisible 7 it is a composite number

Answer 2

Composite number:-

The number which have mire than than two factor(except 1 and itself) .

7 × 6 × 5 × 4 × 3 ×2 ×1 +7

= 7(1×6×5×4×3×2 + 1)

= 7(721)

(here number having a factor 7 )

so its a composite number!

proved!!!