503 is a prime number from 501-600. 503 has 2 factors, 1 and 503. It is the 96th prime number, and the first prime number from 501-600.
Relationship with other odd numbers
The numbers before
- The previous prime number is 499.
- 499 and 503 are four numbers apart; therefore, they are cousin primes.
- The previous prime number before 499 is 491.
- In particular, 493 is the product of 17 and 29, while 497 is divisible by 7.
The numbers after
- The next prime number is 509.
- 503 and 509 are six numbers apart; therefore, they are sexy primes.
- 521 is the next prime number after 509.
- 511 is divisible by 7, while 517 is divisible by 11. Both numbers are composite.
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