743 is a prime number because it has no other positive divisors besides one and itself.
743 is a prime number because it is only divisible by 1 and itself. ;
743 is a prime number because it is only divisible by 1 and itself. To verify this, we checked divisibility by prime numbers up to approximately 27.3 and found it has no divisors other than 1 and 743. Thus, 743 meets the definition of a prime number.
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