79 is a prime number.
79 is the smallest prime whose sum of digits is a fourth power: 7 + 9 = 16 = 24.
79 = 27 – 72.
79 is the maximum number of regions into which 12 lines divide a plane. It is possible to divide a flat pancake into 79 pieces by making 13 straight cuts.
The chemical element gold has atomic number 79.
Source: Prime Curios!
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