Question

explain why 7×11×13+13 & 7×6×5×4×3×2×1+5 are composit no.​

Answer 1

Step-by-step explanation:

composite no. have more than two factors.

7×11×13+13

in this 13 is coming more than one time so we take 13 common

13(7×11×1+1)

so this have more than two factors that are 1, 13 and itself. it is composite

if we take 7×6×5×4×3×2×1+5

so 5 is coming two times

therefore, we will take 5 common

5(7×6×1×4×3×2×1+1)

it is composition because it have three factors 1,5 and itself.