461 is a prime number.
461 has a representation as a sum of two squares: 461 = 102 + 192.
461 and 463 form a twin prime pair.
461 is the hypotenuse of a primitive Pythagorean triple: 4612 = 2612 + 3802.
461 is the largest number for which ((102n) + 1)/101 is known to be a prime number.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjSEFBs6ClmCQDm9MTj_2c7B2LchJYaXjDm8zZF1WhDprpF2tfUefAVffBw4nSGuc23p8zZvm3c9TFqLdvx0P4R7ls0jtUDusHm4J6NPW-BJso8LarFi7NwuXbJG7Vw-YLpQRQT1pZbEek/s200/n0461.jpg)
Source: Prime Curios!
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