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Yeah, finding out if a number is prime or not can be unintuitive. But I doubt Grothendieck would have had trouble with anything divisible by 2 or 5...
by red_trumpet 3y ago
Yeah, finding out if a number is prime or not can be unintuitive. But I doubt Grothendieck would have had trouble with anything divisible by 2 or 5...
- everybodyknows 3y agoMy math is rusty enough to find it helpful to explicate that 2*5 is the complete factorization to primes of 10, and our customary arithmetic base for numbers written on the page is likewise 10.