2019 AMC 10A Problems/Problem 2
Problem
What is the hundreds digit of
Solution
The last three digit of for all is 000, because there are at least three 2s and three 5s in its prime factorization. Because , The answer is .
What is the hundreds digit of
The last three digit of for all is 000, because there are at least three 2s and three 5s in its prime factorization. Because , The answer is .
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