# Number system using eight instead of ten as a base — Crossword Clue Answer

Last seen 2026-09-29

Answer: **OCTAL** (5 letters)

Appeared in:
- Everyday Puzzles Crossword, 2026-09-29
- Everyday Puzzles Crossword, 2026-06-29
- Everyday Puzzles Crossword, 2025-11-16
- Everyday Puzzles Crossword, 2025-01-16

Source: https://cluestash.com/clue/number-system-using-eight-instead-of-ten-as-a-base/