A prime number whose binary representation looks like a giraffe
The last line of the picture contains some 'noise':0000000000000000000000000000000000000000000000000001000101101001So the idea is that you produce any 63x64 binary image then you find a number up to 2^64 so that added to the number represented by the first image gives a prime. It's not exactly amazing, but clever enough.