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1,721 is a prime number from 1001-2000. 1,721 has 2 factors, 1 and 1,721. It is the 268th prime number, and the 100th prime number from 1001-2000.

Proofs

  • Yes — 1,721 can be divided by 1
  • No — 1,721 cannot be divided by 2-1,720
  • Yes — 1,721 can be divided by 1,721

Relationship with other odd numbers

The numbers before

  • The previous prime number is 1,709, 12 numbers away.
    • 1,711 can be factored as 29 x 59.
    • 1,717 is divisible by 17 and 101.

The numbers after

  • The next prime number is 1,723, 2 numbers away.
    • As a result, 1,721 and 1,723 are twin primes.