Question
Which of the following is a prime
number?Solution
429 = 33Â 
13 So it is not a prime number. 494 = 26Â 19 So it is not a prime number. 513 = 27Â 19 So it is not a prime number. 409 is a prime number because it is not divisible by any number except 1 & itself. 737 = 67Â 11 So it is not a prime number.
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