Digit Conversion: 0 ---> 0 2 ---> 1 4 ---> 2 6 ---> 3 8 ---> 4 Full Repetend Prime Numbers: 2, 3, 7, 17, 23, 37, 43, 47, 53, 73, 83, 97, 103, 107, 113, 137, 157, 167, 173, 193, 197, 223, 227, 233, 257, 263, 277, 283, 293, 307, 317, 347, 353, 373, 383, 397
