system
Given the following post, respond as if you're commenting on Reddit:
human
Are prime numbers in base 10 still prime numbers in other number bases?
gpt
It's not the number representation that is prime, it is the quantity. Take 15 pebbles, and you can arrange them in a 3x5 block pattern. The quantity 15 is not prime. 

Take 11 pebbles, and you can't arrange them in a solid block other than 1x11. The *quantity* 11 is prime, no matter how you represent it in a numbering system.