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1,621 is a prime number from 1001-2000. 1,621 has 2 factors, 1 and 1,621. It is the 257th prime number, and the 89th prime number from 1001-2000.

Proofs

  • Yes — 1,621 can be divided by 1
  • No — 1,621 cannot be divided by 2-1,620
  • Yes — 1,621 can be divided by 1,621

Relationship with other odd numbers

The numbers before

  • The previous prime number is 1,619, 2 numbers away.
    • As a result, 1,619 and 1,621 are twin primes.
  • The previous prime number before 1,619 is 1,613, 6 numbers away.

The numbers after

  • The next prime number is 1,627, 6 numbers away.
    • Therefore, 1,621 and 1,627 are sexy primes.
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