The smallest 4 digit prime number is Option 1) 1001 Option 2) 1003 Option 3) 1005 Option 4) 1009 Option 5) None of these

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The smallest 4 digit prime number is Option 1) 1001 Option 2) 1003 Option 3) 1005 Option 4) 1009 Option 5) None of these

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The correct option is Option 4: 1009.

To elaborate, 1009 is the smallest 4-digit prime number.

  • Prime numbers are numbers that are only divisible by 1 and themselves.
  • If we examine the options given:
    • 1001 is not a prime because it is divisible by 7 and 11.
    • 1003 is not a prime because it is divisible by 17.
    • 1005 is not a prime because it is divisible by 5.
  • Thus, out of the options listed, 1009 is the smallest number that does not have any divisors other than 1 and itself, making it the smallest 4-digit prime number.
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