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*{{Divisibility number|No|2-78.}} |
*{{Divisibility number|No|2-78.}} |
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*{{Divisibility number|Yes|{{PAGENAME}}.}} |
*{{Divisibility number|Yes|{{PAGENAME}}.}} |
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+ | ==As an Exponent of Mersenne Number== |
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+ | 2<sup>79</sup> - 1 can be divided by [[2,687]], and is therefore not a prime number. |
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==Relationship with other odd numbers== |
==Relationship with other odd numbers== |
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===The numbers before=== |
===The numbers before=== |
Revision as of 14:00, 5 July 2016
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.
Proofs
As an Exponent of Mersenne Number
279 - 1 can be divided by 2,687, and is therefore not a prime number.
Relationship with other odd numbers
The numbers before
- 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 after
- 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.