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79 is a prime number from 1-100. 79 has 2 factors, 1 and 79. It is the 22nd prime number, and the 22nd prime number from 1-100.

ProofsEdit

  • Yes — 79 can be divided by 1.
  • No — 79 cannot be divided by 2-78.
  • Yes — 79 can be divided by 79.

As an Exponent of Mersenne NumberEdit

279 - 1 can be divided by 2,687, and is therefore not a prime number.

Relationship with other odd numbersEdit

The numbers beforeEdit

  • The previous prime number is 73. All numbers between 73 and 79 are composite.
    • Among them, 75 is divisible by 5, while 77 is divisible by 7 and 11.
    • 73 and 79 are six numbers apart; therefore, they are sexy primes.

The numbers afterEdit

  • The next odd number, 81, is not a prime number. It is a square of 9 and the fourth power of 3.
  • 83, the odd number following 81, is a prime number.
    • 79 and 83 are four numbers apart; therefore, they are cousin primes.

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