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A prime number whose binary representation looks like a giraffe

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Re: A prime number whose binary representation looks like a giraffe

#81
post #69

Earlier quoted context omitted.

There's another definition, that doesn't have to exclude the one explicitly. I think it's a natural number not divisible by any natural number smaller than itself.

*other than one

damn what was it though ... can't remember where I read it.

Re: A prime number whose binary representation looks like a giraffe

#82

Earlier quoted context omitted.

If you "draw" with zeros instead of ones, then you don't have the last-digit-in-foreground problem.

It also solves the leading zeros problem. That's potentially a lot of extra computation to handle, though, since the resulting number in the giraffe case would be something like 2^500 times larger. I guess the question of whether that is worth it depends on your individual value for image shaped primes.

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