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Q: Which of the following numbers is prime?
  • A. 323
  • B. 571
  • C. 513
  • D. 715
Correct Answer: Option B - According to option, 571 is a prime number. Whereas 323 is divisible by 17, 513 is divisible by 3 and 715 is divisible by 5.
B. According to option, 571 is a prime number. Whereas 323 is divisible by 17, 513 is divisible by 3 and 715 is divisible by 5.

Explanations:

According to option, 571 is a prime number. Whereas 323 is divisible by 17, 513 is divisible by 3 and 715 is divisible by 5.