Question

explain why 7 into 11 to 13 + 13 and 7 into 6 into 5 into 4 into 3 into 2 into 1 + 5 are composite numbers​

Answer 1

Heya mate... here is your awesome answer...

Any number which has more than

two factors is called composite

number.

1 ) 7 × 11 × 13 + 13

= 13 ( 7 × 11 + 1 )

= 13 ( 77 + 1 )

= 13 × 78

= 13 × 78 × 1 ( more than two factors )

= Composite number

2 )6 × 5 × 4 × 3 × 2 × 1 + 5

= 5 ( 6 × 4 × 3 × 2 × 1 + 1 )

= 5 ( 144 + 1 )

= 5 × 145

= 5 × 145 × 1 ( more than two factors )

= Composite number

Answer 2

Answer:

7×11×13+13

13(7×1+1)

it has more than two factors so. it is a composite number

6×5×4×3×2×1+5

5(6×43×2×1+1)

it has more than two factors so it is a composite number