205 = 5 x 41.
205 has two representations as a sum of two squares: 205 = 32 + 142 = 62 + 132.
205 is the hypotenuse of two primitive Pythagorean triples: 2052 = 842 + 1872 = 1332 + 1562.
Every number greater than 205 is the sum of distinct primes of the form 6n + 1.
205 is the number of pairs of twin primes less than 10,000.
Source: Prime Curios!
1 comment:
Make that: 205 is the hypotenuse of two primitive Pythagorean triples: **205**^2 = 84^2 + 187^2 = 133^2 + 156^2.
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