Question
Which of the following is a prime
number?Solution
1089 = 33 
33 So it is not a prime number. 1369 = 37 37 So it is not a prime number. 529 = 23 23 So it is not a prime number. 1163 is a prime number because it is not divisible by any number except 1 & itself. 589 = 19 31 So it is not a prime number.
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