Permutations with conditions

Question

Question 1:

abc, is a three digit integer that provides the following conditions

condition 1 will cba > abc
condition 2 abc will prime number
condition 3 cba will prime number
condition 4 ab will prime number
condition 5 bc will prime number
condition 6 cb will prime number
condition 7 ba will prime number

Write a c# working code to satisfy all

 

Please help guys its urgent