743 is a prime number from 701-800. 743 has 2 factors, 1 and 743. It is the 132nd prime number, and the seventh prime number from 701-800.

Proofs[]
Relationship with other odd numbers[]
The numbers before[]
- The previous prime number is 739.
- 739 and 743 are four numbers apart; therefore, they are cousin primes.
- The previous prime number before 739 is 733.
- 737 is divisible by 11, therefore not a prime number.