A. 2

B. 4

C. 6

D. 8

E. 20

There are 12 5’s in 50! So 900^1, 900^2, 900^3, 900^4, 900^5, 900^6 should be possible. The correct answer is C. My question is why are we ignoring 900^0? Shouldn’t that be possible too?

A. 2

B. 4

C. 6

D. 8

E. 20

There are 12 5’s in 50! So 900^1, 900^2, 900^3, 900^4, 900^5, 900^6 should be possible. The correct answer is C. My question is why are we ignoring 900^0? Shouldn’t that be possible too?