Algorithmic Numeral · entry
90211
T9 keypad
- WXYZ ⌷ ABC ⌷ ⌷ T9 phone-keypad letter set per digit
Leet
- POZII leet substitution: 0=O, 1=I, 3=E, 4=A, 5=S, 7=T, etc.
- PO ZII chunked 2+3, leet
- POZ II chunked 3+2, leet
Math
- 11 × 59 × 139 prime factorization