Find the unit digit of the product of all the prime number between 1 a – InterviewSolution

1.	Find the unit digit of the product of all the prime number between 1 and (11)^(11).
Answer» SOLUTION :The set of prime number S={2,3,5,7,11,13,...} Since there is one 5 and one 2 which gives 10 after multiplying mutually, it MEANS the unit digit will be ZERO.

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