Solved: Prove that if n is any nonnegative integer whose decimal representation ends in
Chapter 4, Problem 44(choose chapter or problem)
Prove that if n is any nonnegative integer whose decimal representation ends in 0, then 5 | n. (Hint: If the decimal representation of a nonnegative integer n ends in d0, then n = 10m + d0 for some integer m.)
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