Tetravigesimal is a number system where the base is 24 and the first 8 powers of 5 are palindromes. New Version: https://scratch.mit.edu/projects/1387144486/ Full Repetend Prime Numbers: 7, 11, 13, 17, 31, 37, 41, 59, 83, 89, 107, 109, 113, 137, 157, 179, 181, 223, 227, 229, 233, 251, 257, 277, 281, 347, 353, 373, 397, 401, 419, 421, 443, 463, 467
