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89 is a prime between 1 and 100. It has 2 factors - 1 and 89. It is the 24th prime number, and the 24th prime number from 1-100.

ProofsEdit

  • Yes — 89 can be divided by 1.
  • No — 89 cannot be divided by 2-88.
  • Yes — 89 can be divided by 89.

As an Exponent of Mersenne NumberEdit

289 - 1, which is 618,970,019,642,690,137,449,562,111, is a prime number. It is the 10th Mersenne Prime.

Relationship with other odd numbersEdit

The numbers beforeEdit

  • The previous prime number is 83. All numbers between 83 and 89 are composite.
    • Among them, 85 is divisible by 5, while 87 is divisible by 3.
    • 83 and 89 are six numbers apart; therefore, they are sexy primes.

The numbers afterEdit

  • The next prime number is 97. All numbers between 89 and 97 are composite.
    • Among them, 91 is divisible by 7 and 13, 93 by 3, and 95 by 5.
    • 89 and 97 are eight numbers apart. It features the longest gap between prime numbers from 1 to 100.

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