Fill in the number grid with the numbers listed. Which of the numbers won't fit?



137, 173, 301, 731, 770

In cross-number digit-grid interlocking puzzles containing lists of choices, numbers share intersecting squares. The items 137, 301, 731, and 770 connect sequentially through common overlapping terminal digits (e.g., matching 1s, 3s, 7s, or 0s symmetrically across structural junctions), whereas 173 fails to dynamically satisfy the cross-placement structure and does not fit.