Which of these is the prime factorization of 32?
252^525
42⋅24^2 \cdot 242⋅2
2⋅162 \cdot 162⋅16
2⋅2⋅2⋅2⋅22 \cdot 2 \cdot 2 \cdot 2 \cdot 22⋅2⋅2⋅2⋅2