Fill in the Blanks to Make a True Sentence or State

Short Answer

Fill in the blanks to make a true sentence or state if no number or algebraic expression will make the sentence true.
A) An example of a number that has an odd number of factors is _____.
B) If n = 13^{8 .} 17¹⁰, then the prime factorization of 26 ^. n is _____.
C) Three will be a factor of 1,400,000,00?,000,000,014 if the missing digit (?) is _____ or _____ or _____.