73 is the 21st prime number, and its mirror image, 37, is the 12th prime number, which is the mirror image of 21. and its mirror image, 21, is the product of; hold on to your hats; 7 and 3.
Don't pretend that isn't a WIN.
73 is the 21st prime number, and its mirror image, 37, is the 12th prime number, which is the mirror image of 21. and its mirror image, 21, is the product of; hold on to your hats; 7 and 3.
Don't pretend that isn't a WIN.