获得仅有2,3和5作为主要因素的数字

I am writing a code to find numbers which have prime factor 2,3 or 5.Problem is that after testing the value which have prime factors 2,3 or 5, I am not able to put the value in an array array[j] without any space(i.e null value).Do you have any suggestion for this?I have marked the problem area.I am writing a code to find numbers which have