Related Clues:

• Number system in which 64 is 100
• Of the number eight
• Of base 8
• Expressed in base eight
• Pertaining to eight
• Using the digits 0-7
• Of base eight
• Base 8
• Using only 0 through 7
• Related to base eight
• Base-eight
• Based on 8
• Using base 8
• Eight-related
• Based on the number eight