Identify the Odd One Out:

273

The correct answer is Option (3) → 273

• 191, 149, and 233 are all prime numbers (only divisible by 1 and themselves).
• 191: Prime
• 149: Prime
• 233: Prime
• 273 is not a prime number (it is composite).
• 273 = 3 × 91 = 3 × 7 × 13

Thus, 273 stands out as the only non-prime (composite) number among the options.