AQuA-RAT train #69338 · Number Theory · Divisibility
For a positive integer n, if 5^n is a factor of 20…
For a positive integer n, if 5^n is a factor of 20!, but 5^n+1 is not a factor of 20!, what is the value of n?
AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #69338
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