668
-
MNO MNO TUV
T9 phone-keypad letter set per digit
-
GGB
leet substitution: 0=O, 1=I, 3=E, 4=A, 5=S, 7=T, etc.
-
2 × 2 × 167
prime factorization
MNO MNO TUV
T9 phone-keypad letter set per digit
GGB
leet substitution: 0=O, 1=I, 3=E, 4=A, 5=S, 7=T, etc.
2 × 2 × 167
prime factorization