Question

check whether 5 multiply 3 multiply 11 + 11 and 5 multiply 7 + 7 multiply 3 + 3 composite numbers and justified

Answer 1

composite no. are no.s other than prime no.s. ,hence they can be represented as a multiple of two no.s other than itself and 1. Now here, first one can be represented as a multiple of two no.s,hence it is a composite no. while other no. is not in the form of two multiples ....