Question

check whether 5×3×11+11and 5×7+7×3 are composite number and justify​

Answer 1

a number which has more than two factors are called composite numbers..

so

11(5×3×1+1)

11×16

11×2×8

so it has more than two factors they are called composite numvers

same as

7(5×1+1×3)

7×16

7×2×8

so its also has more than two factors so this is also a composite numbers....