457 is a prime number.
457 has a representation as a sum of two squares: 457 = 42 + 212.
457 is the hypotenuse of a primitive Pythagorean triple: 4572 = 1682 + 4252.
457 is a divisor of 1812 - 1.
457 is the index of a prime Euclid number.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgNbpEpyaLXjZrvFXjNKzjX7S5IxMEWs96ezruBw1ANCCNMFddzHiUfiH5YeM74efdE_KjCLUNwjKHrMcE7unZJ2vydMMwZ_KWnIUeTWMKGM9FFUsODIU_rUVDEf_bmAWTsuYEpe6d6bFg/s200/n0457.jpg)
Source: Prime Curios!
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