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Unformatted text preview: 6. What is the rightmost digit (digit in the units place) of 32 631 ? Show your work. 7. Prove that for any prime p > 3, either p 1 (mod 6) or p 5 (mod 6). 8. Section 3.5, exercise 32 9. Find an inverse of 2 modulo 17. 10. Optional: How many zeroes are there at the end of 100! ? Please write about how many hours it took you to complete this assignment near where you write your name on the rst page....
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 Winter '08
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